{"id":4245,"date":"2018-11-14T02:27:49","date_gmt":"2018-11-14T02:27:49","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=4245"},"modified":"2024-08-22T13:24:58","modified_gmt":"2024-08-22T13:24:58","slug":"eletrodinamica-09-aparelhos-de-medicao-eletrica-amperimetros-e-voltimetros","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/formulario\/eletrodinamica-09-aparelhos-de-medicao-eletrica-amperimetros-e-voltimetros\/","title":{"rendered":"Eletrodin\u00e2mica 09 – Aparelhos de medi\u00e7\u00e3o el\u00e9trica \u2013 Amper\u00edmetros e Volt\u00edmetros"},"content":{"rendered":"

Formul\u00e1rio completo de F\u00edsica com informa\u00e7\u00f5es \u00fateis <\/b><\/span><\/span><\/span><\/p>\n

(Dicas para vestibulares)<\/b><\/span><\/span><\/span><\/p>\n

Eletrodin\u00e2mica 09<\/b><\/span><\/span><\/span><\/p>\n

Aparelhos de medi\u00e7\u00e3o el\u00e9trica \u2013 Amper\u00edmetros e Volt\u00edmetros<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

Amper\u00edmetros<\/b><\/span><\/span><\/span><\/span><\/span><\/p>\n

<\/p>\n

Volt\u00edmetros<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Informa\u00e7\u00f5es \u00fateis <\/b><\/span><\/span><\/span>(dicas para vestibulares)<\/b><\/span><\/span><\/span><\/p>\n

Suponha que voc\u00ea\u00a0<\/b><\/span><\/span>deseja <\/b><\/span><\/span>medir a corrente que passa pelo ponto B<\/b><\/span><\/span>\u00a0<\/b><\/span><\/span>e a <\/b><\/span><\/span>diferen\u00e7a\u00a0de potencial<\/b><\/span><\/span> entre os <\/b><\/span><\/span>pontos C e D,<\/b><\/span><\/span> da figura, dispondo de <\/b><\/span><\/span>volt\u00edmetro e amper\u00edmetro,<\/b><\/span><\/span> ambos<\/b><\/span><\/span><\/span><\/span><\/p>\n

<\/a> ideais.<\/b><\/span><\/span><\/span><\/span><\/p>\n

<\/p>\n

Para isso, voc\u00ea deve\u00a0<\/b><\/span><\/span><\/span>abrir o circuito em B e inserir a\u00ed o\u00a0amper\u00edmetro<\/b><\/span><\/span><\/span>,<\/b><\/span><\/span><\/span>\u00a0pois ele\u00a0<\/b><\/span><\/span><\/span>deve ficar <\/b><\/span><\/span><\/span>em s\u00e9rie<\/b><\/span><\/span><\/span>\u00a0com o\u00a0<\/b><\/span><\/span><\/span>trecho percorrido por i<\/b><\/span><\/span><\/span>B<\/b><\/span><\/span><\/sub><\/span>, de modo que <\/b><\/span><\/span><\/span>i<\/b><\/span><\/span><\/span>B<\/b><\/span><\/span><\/sub><\/span>\u00a0passe por ele.<\/b><\/span><\/span><\/span><\/p>\n

Os\u00a0<\/b><\/span><\/span><\/span>terminais do volt\u00edmetro devem ser ligados aos pontos C e D<\/b><\/span><\/span><\/span> de modo que o\u00a0<\/b><\/span><\/span><\/span>volt\u00edmetro\u00a0fique em<\/b><\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>paralelo\u00a0com o trecho entre C e D,<\/b><\/span><\/span><\/span> onde voc\u00ea quer <\/b><\/span><\/span><\/span>medir a ddp.<\/b><\/span><\/span><\/span><\/p>\n

Observe que a\u00a0<\/b><\/span><\/span><\/span>resist\u00eancia interna do amper\u00edmetro ideal dever ser nula<\/b><\/span><\/span><\/span>\u00a0de modo que\u00a0<\/b><\/span><\/span><\/span>toda i<\/b><\/span><\/span><\/span>B<\/b><\/span><\/span><\/sub><\/span>\u00a0passe por<\/b><\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>ele\u00a0<\/b><\/span><\/span><\/span>e que a\u00a0<\/b><\/span><\/span><\/span>resist\u00eancia interna do volt\u00edmetro deve ser infinita de modo que i<\/b><\/span><\/span><\/span>CD<\/b><\/span><\/span><\/sub><\/span>\u00a0n\u00e3o desvie para ele.<\/b><\/span><\/span><\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Formul\u00e1rio completo de F\u00edsica com informa\u00e7\u00f5es \u00fateis (Dicas para vestibulares) Eletrodin\u00e2mica 09 Aparelhos de medi\u00e7\u00e3o el\u00e9trica \u2013 Amper\u00edmetros e Volt\u00edmetros \u00a0 Amper\u00edmetros Volt\u00edmetros Informa\u00e7\u00f5es \u00fateis (dicas para vestibulares) Suponha que voc\u00ea\u00a0deseja medir a corrente que passa pelo ponto B\u00a0e a diferen\u00e7a\u00a0de potencial entre os pontos C e D, da figura, dispondo de volt\u00edmetro e amper\u00edmetro, ambos ideais. Para isso, voc\u00ea<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3987,"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-4245","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4245","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=4245"}],"version-history":[{"count":1,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4245\/revisions"}],"predecessor-version":[{"id":4246,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4245\/revisions\/4246"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3987"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=4245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}