{"id":1683,"date":"2015-12-19T15:39:16","date_gmt":"2015-12-19T15:39:16","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=1683"},"modified":"2025-01-08T18:54:19","modified_gmt":"2025-01-08T18:54:19","slug":"corrente-eletrica-eletrodinamica","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/eletricidade\/eletrodinamica\/corrente-eletrica-eletrodinamica\/","title":{"rendered":"Corrente El\u00e9trica e  Eletrodin\u00e2mica"},"content":{"rendered":"<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\"><b>Corrente El\u00e9trica<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\"><b>Eletrodin\u00e2mica<\/b><\/span><\/span><\/span><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_82f915c8.png\" alt=\"\" width=\"34\" height=\"16\" name=\"Imagem 163\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #c00000;\">\u00a0<span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>A\u00a0<\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>eletrodin\u00e2mica \u00e9 a parte da F\u00edsica<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b> que estuda <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>part\u00edculas el\u00e9tricas em movimento,<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b> que, <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>fluindo <\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>de\u00a0<\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>maneira ordenada\u00a0num condutor constituem uma corrente\u00a0<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>el\u00e9trica cuja descoberta provocou uma <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>revolu\u00e7\u00e3o tecnol\u00f3gica<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>, com o <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>advento da eletricidade.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_301672b0.png\" alt=\"\" width=\"34\" height=\"16\" name=\"Imagem 1\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>As <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>figuras abaixo<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b> mostram algumas das consequ\u00eancias da <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>evolu\u00e7\u00e3o da energia el\u00e9trica.<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>\u00a0\u00a0\u00a0\u00a0<img fetchpriority=\"high\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_b9803ebf.png\" alt=\"\" width=\"775\" height=\"191\" name=\"Imagem 174\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\"><b>Condutores el\u00e9tricos<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>Para que um corpo seja <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>condutor de eletricidade ele deve permitir que part\u00edculas eletrizadas<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b> (eletrons livres, \u00edons positivos ou negativos,etc.) se <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>movimentem em seu interior.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>Tipos de materiais condutores de eletricidade<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_82f915c8.png\" alt=\"\" width=\"34\" height=\"16\" name=\"Imagem 2\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>Condutores met\u00e1licos<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_fb67ef15.jpg\" alt=\"\" width=\"23\" height=\"11\" name=\"Imagem 183\" align=\"BOTTOM\" border=\"0\" \/>os <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>portadores de carga el\u00e9trica<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b> que se <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>movem no interior desses<\/b><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_b2b27123.png\" alt=\"\" width=\"232\" height=\"89\" name=\"Imagem 190\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>condutores s\u00e3o os el\u00e9trons livres (fracamente ligados ao n\u00facleo at\u00f4mico, que est\u00e3o mais afastados deles).<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>Al\u00e9m disso, os <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>metais oferecem grande mobilidade aos eletrons livres<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b> permitindo que eles se <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>espalhem por todo o metal.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_453bd1a3.png\" alt=\"\" width=\"774\" height=\"64\" name=\"Imagem 191\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>Exemplos<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>: <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>cobre, ferro, chumbo, nquel, alum\u00ednio, prata, ouro, etc.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_82f915c8.png\" alt=\"\" width=\"34\" height=\"16\" name=\"Imagem 192\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>Solu\u00e7\u00f5es eletrol\u00edticas (condutores l\u00edquidos)<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_fb67ef15.jpg\" alt=\"\" width=\"23\" height=\"11\" name=\"graphics1\" align=\"BOTTOM\" border=\"0\" \/> quem se <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>desloca de maneira ordenada <\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>s\u00e3o os<\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>\u00edons negativos e positivos (portadores de carga el\u00e9trica)<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b> que surgem da <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>dissocia\u00e7\u00e3o i\u00f4nica decompostos \u00e1cidos, b\u00e1sicos ou salinos<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b> em<\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>solventes.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_ebd7d6d1.png\" alt=\"\" width=\"591\" height=\"117\" name=\"Imagem 198\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>No <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>exemplo acima<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>, a <\/b><\/span><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>corrente el\u00e9trica \u00e9 constituida de \u00edons positivos se movendo no sentido do eletrodo negativo (anodo) e \u00edons negativos em sentido contr\u00e1rio, em dire\u00e7\u00e3o ao eletrodo positivo (catodo).<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_82f915c8.png\" alt=\"\" width=\"34\" height=\"16\" name=\"graphics2\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>Condutores gasosos<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><span lang=\"pt-PT\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_fb67ef15.jpg\" alt=\"\" width=\"23\" height=\"11\" name=\"graphics3\" align=\"BOTTOM\" border=\"0\" \/>\u00a0<\/b><\/span><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>gases<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, geralmente <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>isolantes,<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> podem ser <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ionizados na presen\u00e7a de<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_e2c6647f.png\" alt=\"\" width=\"774\" height=\"106\" name=\"Imagem 6\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>um forte campo el\u00e9trico eformar suas part\u00edculas portadoras de cargas, os \u00edons e el\u00e9trons.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"JUSTIFY\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Quando <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ionizados, eles emitem luz. <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>rel\u00e2mpagos e raios<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>obedecem basicamente a esse <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>mesmo princ\u00edpio.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\"><b>Corrente el\u00e9trica (i)<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_82f915c8.png\" alt=\"\" width=\"34\" height=\"16\" name=\"Imagem 7\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Num <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>fio met\u00e1lico condutor,<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>el\u00e9trons livresn\u00e3o est\u00e3o em repouso e seus movimentos s\u00e3ototalmente desordenados.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_170be669.png\" alt=\"\" width=\"775\" height=\"236\" name=\"Imagem 8\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_82f915c8.png\" alt=\"\" width=\"34\" height=\"16\" name=\"Imagem 9\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Sentido da corrente el\u00e9trica<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_ff9bb272.jpg\" alt=\"\" width=\"17\" height=\"8\" name=\"graphics4\" align=\"BOTTOM\" border=\"0\" \/>\u00a0por <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>conven\u00e7\u00e3o,<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0o <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>sentido da corrente el\u00e9trica<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> \u00e9 <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>contr\u00e1rio<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> ao <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>sentido do movimento dos portadores de carga negativa<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.\u00a0<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Assim, num <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>condutor s\u00f3lido, o sentido da corrente el\u00e9trica \u00e9 contr\u00e1rio<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_21ca2176.png\" alt=\"\" width=\"774\" height=\"146\" name=\"Imagem 11\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ao do <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>movimento dos el\u00e9trons livres<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, nos <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>l\u00edquidos, contr\u00e1rio ao movimento dos \u00edons negativos e nos gases, contr\u00e1rio ao do movimento dos el\u00e9trons.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_87eea2b5.png\" alt=\"\" width=\"774\" height=\"249\" name=\"graphics5\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Esta express\u00e3o fornece a <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>intensidade m\u00e9dia de corrente el\u00e9trica mas tamb\u00e9m pode medir corrente el\u00e9trica constante.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_2f02d12d.png\" alt=\"\" width=\"775\" height=\"153\" name=\"graphics6\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_6c0444f6.png\" alt=\"\" width=\"774\" height=\"97\" name=\"graphics7\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_da54ade6.png\" alt=\"\" width=\"265\" height=\"113\" name=\"Imagem 15\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_745cf752.gif\" alt=\"\" \/> <span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Tipos de correntes el\u00e9tricas:<\/b><\/span><\/span><\/span><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_901fdf7f.gif\" alt=\"\" \/> <span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Corrente cont\u00ednua (CC)<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"graphics8\" align=\"BOTTOM\" border=\"0\" \/> o <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>sentido e a intensidade<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> desse tipo de corrente <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>permanece constante<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> com o <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>decorrer do tempo.<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Exemplos<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>: <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>baterias de carros e de motos<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> (6V, 9V, 12V ou 24V), <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>pilhas <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(1,5V), <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>alimentam aparelhos eletr\u00f4nicos<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_f91108a2.png\" alt=\"\" width=\"774\" height=\"121\" name=\"Imagem 27\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>e os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>circuitos digitais de computadores, modems, celulares,etc.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_8b239344.png\" alt=\"\" width=\"350\" height=\"133\" name=\"Imagem 28\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_901fdf7f.gif\" alt=\"\" \/> <span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Corrente alternada (CA)<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"graphics9\" align=\"BOTTOM\" border=\"0\" \/> o <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>sentido e a intensidade desse tipo de corrente variam<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>periodicamente com o tempo.<\/b><\/span><\/span><\/span><b><\/b><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>A\u00a0 <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>corrente el\u00e9trica alternada, no Brasil<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>inverte seu sentido e retorna ao sentido original<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>60 vezes<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>por segundo<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, ou seja, sua <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>freq\u00fc\u00eancia \u00e9 de 60 Hz<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_30c62dec.png\" alt=\"\" width=\"774\" height=\"151\" name=\"Imagem 40\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_22cb2003.png\" alt=\"\" width=\"462\" height=\"161\" name=\"Imagem 41\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_745cf752.gif\" alt=\"\" \/><span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Efeitos da corrente el\u00e9trica<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>a <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>passagem da corrente el\u00e9trica atrav\u00e9s de diversos tipos de condutores provoca, dependendo da natureza dos condutores, diferentes efeitos:<\/b><\/span><\/span><\/span><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_901fdf7f.gif\" alt=\"\" \/><span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #c00000;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Efeito Joule (efeito t\u00e9rmico)<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"graphics10\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> quando os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>el\u00e9trons livres que se movem ordenadamente no interior do condutor se chocam contra os \u00e1tomos desse material eles recebem energia <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>e, ao <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>receberem essa energia, vibram mais intensamente.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Esse <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>aumento vibrat\u00f3rio dos \u00e1tomos do condutor provoca um aumento de sua temperatura, liberando calor e aquecendo-o, provocando a\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>transforma\u00e7\u00e3o da energia el\u00e9trica em energia<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> t\u00e9rmica (efeito Joule).<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_ed27251b.png\" alt=\"\" width=\"774\" height=\"108\" name=\"Imagem 57\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_901fdf7f.gif\" alt=\"\" \/> <span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Efeito fisiol\u00f3gico<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"graphics11\" align=\"BOTTOM\" border=\"0\" \/> quando a <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>corrente el\u00e9trica flui atrav\u00e9s de organismos vivos<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> ela atua <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>diretamente sobre o sistema nervoso<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, que <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>atua sobre os m\u00fasculos do corpo, provocando contra\u00e7\u00f5es musculares.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_9392c5ef.png\" alt=\"\" width=\"774\" height=\"147\" name=\"Imagem 75\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_901fdf7f.gif\" alt=\"\" \/> <span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Efeito qu\u00edmico<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"Imagem 76\" align=\"BOTTOM\" border=\"0\" \/> trata-se de um\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>fen\u00f4meno el\u00e9trico molecular,<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0 que surge quando a <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>corrente el\u00e9trica atravessa certas solu\u00e7\u00f5es eletrol\u00edticas.<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> O aproveitamento do <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>efeito qu\u00edmico<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> se d\u00e1, por exemplo, nas pilhas,<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_6436fba5.png\" alt=\"\" width=\"774\" height=\"97\" name=\"Imagem 85\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>exemplo, nas pilhas,<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>na eletr\u00f3lise, e tamb\u00e9m na galvanoplastia que consiste na croma\u00e7\u00e3o, niquela\u00e7\u00e3o e pratea\u00e7\u00e3o de objetos, recobrindo-os com uma fina camada de cromo, n\u00edquel, e prata, respectivamente.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<\/span><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_901fdf7f.gif\" alt=\"\" \/><span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Efeito magn\u00e9tico<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"Imagem 91\" align=\"BOTTOM\" border=\"0\" \/> este \u00e9 o <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>efeito mais importante da corrente el\u00e9trica<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>,e surge pelo fato de a<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_e8fd255e.png\" alt=\"\" width=\"775\" height=\"102\" name=\"Imagem 97\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_901fdf7f.gif\" alt=\"\" \/><span style=\"color: #c00000;\">\u00a0<\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Efeito luminoso<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"Imagem 86\" align=\"BOTTOM\" border=\"0\" \/> trata-se\u00a0 um <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>fen\u00f4meno el\u00e9trico molecular<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> e surge quando <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>gases ionizados<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>emitem luz ao serem atravessados por uma corrente el\u00e9trica.<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Como exemplo, temos as <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>l\u00e2mpadas fluorescentes (usadas na ilumina\u00e7\u00e3o de\u00a0empresas), as l\u00e2mpadas de vapor de merc\u00fario (usadas na<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_5ecc20e8.png\" alt=\"\" width=\"775\" height=\"117\" name=\"Imagem 107\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ilumina\u00e7\u00e3o de quadras esportivas), as l\u00e2mpadas de vapor de s\u00f3dio (para ilumina\u00e7\u00e3o de t\u00faneis e estradas), etc. onde ocorre transforma\u00e7\u00e3o direta de energia el\u00e9trica em energia luminosa.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: large;\"><b>O que voc\u00ea deve saber, informa\u00e7\u00f5es e dicas<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_d16a860a.png\" alt=\"\" width=\"49\" height=\"16\" name=\"Imagem 108\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_2f02d12d.png\" alt=\"\" width=\"775\" height=\"153\" name=\"graphics12\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_d16a860a.png\" alt=\"\" width=\"49\" height=\"16\" name=\"graphics13\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #c00000;\">\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_5c256114.png\" alt=\"\" width=\"775\" height=\"133\" name=\"Imagem 109\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_d16a860a.png\" alt=\"\" width=\"49\" height=\"16\" name=\"graphics14\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #c00000;\">\u00a0<\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Efeito Joule (efeito t\u00e9rmico)<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"graphics15\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> quando os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>el\u00e9trons livres que se movem ordenadamente no interior do condutor se chocam contra os \u00e1tomos desse material eles recebem energia <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>e, ao <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>receberem essa energia, vibram mais intensamente.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Esse <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>aumento vibrat\u00f3rio dos \u00e1tomos do condutor provoca um aumento de sua temperatura, liberando calor e aquecendo-o, provocando a\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>transforma\u00e7\u00e3o da energia el\u00e9trica em energia<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> t\u00e9rmica (efeito Joule).<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_ed27251b.png\" alt=\"\" width=\"774\" height=\"108\" name=\"graphics16\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_d16a860a.png\" alt=\"\" width=\"49\" height=\"16\" name=\"graphics17\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Corrente cont\u00ednua (CC)<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"graphics18\" align=\"BOTTOM\" border=\"0\" \/> o <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>sentido e a intensidade<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> desse tipo de corrente <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>permanece constante<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> com o <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>decorrer do tempo.<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Exemplos<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>: <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>baterias de carros e de motos<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> (6V, 9V, 12V ou 24V), <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>pilhas <\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(1,5V), <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>alimentam aparelhos eletr\u00f4nicos<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_f91108a2.png\" alt=\"\" width=\"774\" height=\"121\" name=\"graphics19\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>e os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>circuitos digitais de computadores, modems, celulares,etc.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_8b239344.png\" alt=\"\" width=\"350\" height=\"133\" name=\"graphics20\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_d16a860a.png\" alt=\"\" width=\"49\" height=\"16\" name=\"graphics21\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>Corrente alternada (CA)<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_7a21c119.jpg\" alt=\"\" width=\"19\" height=\"9\" name=\"graphics22\" align=\"BOTTOM\" border=\"0\" \/> o <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>sentido e a intensidade desse tipo de corrente variam<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>periodicamente com o tempo.<\/b><\/span><\/span><\/span><b><\/b><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>A\u00a0 <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>corrente el\u00e9trica alternada, no Brasil<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>inverte seu sentido e retorna ao sentido original<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>60 vezes<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>por segundo<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, ou seja, sua <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: 'Arial Black', serif;\"><span style=\"font-size: medium;\"><b>freq\u00fc\u00eancia \u00e9 de 60 Hz<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_30c62dec.png\" alt=\"\" width=\"774\" height=\"151\" name=\"graphics23\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_22cb2003.png\" alt=\"\" width=\"462\" height=\"161\" name=\"graphics24\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_d16a860a.png\" alt=\"\" width=\"49\" height=\"16\" name=\"graphics25\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>fios met\u00e1licos tem formato cil\u00edndrico<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> por que os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>el\u00e9trons livres, pelo fato de repelirem<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> (cargas de mesmo sinal se repelem), ficam <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>distribu\u00eddos uniformemente na superf\u00edcie do fio, e n\u00e3o em seu interior.<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_348c2577.png\" alt=\"\" width=\"774\" height=\"128\" name=\"Imagem 19\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Se os fios <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>tivessem formato quadricular<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>el\u00e9trons livres continuariam na superf\u00edcie<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, mas se <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>acumulariam nas pontas, n\u00e3o ficando mais uniformemente distribu\u00eddos na superf\u00edcie.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_d16a860a.png\" alt=\"\" width=\"49\" height=\"16\" name=\"graphics26\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_bcec32a2.png\" alt=\"\" width=\"774\" height=\"190\" name=\"Imagem 20\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_d16a860a.png\" alt=\"\" width=\"49\" height=\"16\" name=\"graphics27\" align=\"BOTTOM\" border=\"0\" \/><\/span><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>el\u00e9trons<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, em um <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>circuito<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> no qual h\u00e1 uma <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>corrente el\u00e9trica cont\u00ednua,<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> movem-se com <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>velocidade muito pequena (apenas 0,1 mm\/s, aproximadamente).<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> Entretanto, quando <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ligamos o interruptor<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/migracao\/eletrcidade\/corrente\/i_4ab1bd4406b1e58c_html_1f836adf.png\" alt=\"\" width=\"770\" height=\"177\" name=\"Imagem 25\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>do <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>circuito<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, o <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>campo el\u00e9trico que surge no condutor \u00e9 estabelecido quase instantaneamente em todo<\/b><\/span><\/span><\/span><b> <\/b><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>fio,<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> pois a <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>velocidade de propaga\u00e7\u00e3o desse campo \u00e9 praticamente igual \u00e0 da luz.<\/b><\/span><\/span><\/span><b><\/b><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Ent\u00e3o, em um <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>tempo muito curto, todos os el\u00e9trons livres j\u00e1 est\u00e3o em movimento,<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b> embora os <\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>el\u00e9trons que come\u00e7aram a mover-se nas proximidades do interruptor s\u00f3 alcancem o filamento depois de um tempo muito longo.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\">\u00a0<\/span><\/p>\n<h3><a title=\"Exerc\u00edcios de vestibulares com resolu\u00e7\u00e3o comentada sobre o conte\u00fado de eletrodin\u00e2mica Corrente El\u00e9trica\" href=\"https:\/\/fisicaevestibular.com.br\/novo\/eletricidade\/eletrodinamica\/corrente-eletrica-eletrodinamica\/resolucao-comentada-dos-exercicios-de-vestibulares-sobre-corrente-eletrica\/\"><span style=\"color: #000080;\">Confira os exerc\u00edcios com resolu\u00e7\u00e3o comentada<\/span><\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>Corrente El\u00e9trica Eletrodin\u00e2mica \u00a0A\u00a0eletrodin\u00e2mica \u00e9 a parte da F\u00edsica que estuda part\u00edculas el\u00e9tricas em movimento, que, fluindo de\u00a0maneira ordenada\u00a0num condutor constituem uma corrente\u00a0el\u00e9trica cuja descoberta provocou uma revolu\u00e7\u00e3o tecnol\u00f3gica, com o advento da eletricidade. As figuras abaixo mostram algumas das consequ\u00eancias da evolu\u00e7\u00e3o da energia el\u00e9trica.\u00a0\u00a0\u00a0\u00a0 \u00a0 Condutores el\u00e9tricos Para que um corpo seja condutor de eletricidade ele deve permitir<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1676,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-1683","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1683","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/comments?post=1683"}],"version-history":[{"count":4,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1683\/revisions"}],"predecessor-version":[{"id":12251,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1683\/revisions\/12251"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/1676"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=1683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}