{"id":3794,"date":"2018-02-15T10:48:46","date_gmt":"2018-02-15T10:48:46","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=3794"},"modified":"2024-08-20T16:08:43","modified_gmt":"2024-08-20T16:08:43","slug":"resolucao-comentada-eletrodinamica-resistor-equivalente-nas-associacoes-serie-paralelo-e-mista","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/enem\/eletrodinamica-resistor-equivalente-nas-associacoes-serie-paralelo-e-mista\/resolucao-comentada-eletrodinamica-resistor-equivalente-nas-associacoes-serie-paralelo-e-mista\/","title":{"rendered":"Eletrodin\u00e2mica – S\u00e9rie, Paralelo e Mista – Resolu\u00e7\u00e3o"},"content":{"rendered":"

Resolu\u00e7\u00e3o Comentada<\/b><\/span><\/span><\/span>\u00a0 <\/b><\/span><\/span><\/span><\/p>\n

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

Resistor Equivalente nas associa\u00e7\u00f5es S\u00e9rie, Paralelo e Mista<\/b><\/span><\/span><\/span><\/p>\n

01-(UFMS-MS)<\/b><\/span><\/span><\/span><\/p>\n

Observe a\u00a0 sequ\u00eancia de figuras abaixo:<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

R- B<\/b><\/span><\/span><\/span><\/p>\n

02-(UESPI-PI)\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\u00a0<\/span>Refazendo o circuito:<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

R- B<\/b><\/span><\/span><\/span><\/p>\n

03-(MACKENZIE-SP)<\/b><\/span><\/span><\/span><\/p>\n

\u00a0<\/span>\u00a0<\/span>Observe a sequ\u00eancia abaixo:<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

R- B<\/b><\/span><\/span><\/span><\/p>\n

04-(PUC-SP)<\/b><\/span><\/span><\/span><\/p>\n

\u00a0Observe que existe um curto circuito e que a corrente passar\u00e1 somente pelos dois resistores de baixo\u00a0 —\u00a0 R<\/b><\/span><\/span><\/span>eq<\/b><\/span><\/span><\/sub><\/span>=R + R=2R<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

R<\/b><\/span><\/span><\/span>eq<\/b><\/span><\/span><\/sub><\/span>=2R\u00a0<\/b><\/span><\/span><\/span>\u00a0—\u00a0 <\/b><\/span><\/span><\/span>R- D.<\/b><\/span><\/span><\/span><\/p>\n

05-(UF-PE)<\/b><\/span><\/span><\/span><\/p>\n

Observe a sequ\u00eancia abaixo:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

R- E.<\/b><\/span><\/span><\/span><\/p>\n

06-(FGV-SP)<\/b><\/span><\/span><\/span><\/p>\n

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

R- B.<\/b><\/span><\/span><\/span><\/p>\n

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

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

07-(FUVEST-SP)<\/b><\/span><\/span><\/span><\/p>\n

S\u00f3 s\u00e3o iluminados os trechos percorridos por corrente\u00a0 —\u00a0 os trechos que est\u00e3o em curo circuito foram eliminados nas figuras abaixo<\/b><\/span><\/span><\/span><\/p>\n

\"\"\u00a0<\/span>R- E<\/b><\/span><\/span><\/span><\/p>\n

08-(UFRRJ-RJ)<\/b><\/span><\/span><\/span><\/p>\n

O sistema que aquece mais rapidamente a \u00e1gua \u00e9 aquele que possui\u00a0menor\u00a0resist\u00eancia equivalente\u00a0 —\u00a0 Req=0,5\u2126\u00a0 —\u00a0 <\/b><\/span><\/span><\/span>R- B<\/b><\/span><\/span><\/span><\/p>\n

09-\u00a0(UNESP-SP)<\/b><\/span><\/span><\/span><\/p>\n

S\u00e9rie\u00a0 —\u00a0 R1\u00a0+ R2=R (I)\u00a0 —\u00a0 paralelo\u00a0 —\u00a0 R1.R2\/(R1\u00a0+ R2)=3R\/16\u00a0 —\u00a0\u00a0 R1.R2\/R=3R\/16\u00a0 —\u00a0 R1.R2=3R2\/16 (II)\u00a0 —\u00a0resolvendo o sistema composto por (I) e (II)\u00a0 —\u00a0\u00a0R1=R\/4 e R2=3R\/4\u00a0 —\u00a0\u00a0<\/b><\/span><\/span><\/span>R- A<\/b><\/span><\/span><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

10- (CFT-MG)<\/b><\/span><\/span><\/span><\/p>\n

\u00a0Maior corrente implica em maior pot\u00eancia e consequentemente em menor resist\u00eancia\u00a0 —\u00a0\u00a0<\/b><\/span><\/span><\/span>R- D<\/b><\/span><\/span><\/span><\/p>\n

 <\/p>\n

Voltar para os exerc\u00edcios<\/span><\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

Resolu\u00e7\u00e3o Comentada\u00a0 Eletrodin\u00e2mica Resistor Equivalente nas associa\u00e7\u00f5es S\u00e9rie, Paralelo e Mista 01-(UFMS-MS) Observe a\u00a0 sequ\u00eancia de figuras abaixo: R- B 02-(UESPI-PI)\u00a0\u00a0 \u00a0Refazendo o circuito: R- B 03-(MACKENZIE-SP) \u00a0\u00a0Observe a sequ\u00eancia abaixo: R- B 04-(PUC-SP) \u00a0Observe que existe um curto circuito e que a corrente passar\u00e1 somente pelos dois resistores de baixo\u00a0 —\u00a0 Req=R + R=2R Req=2R\u00a0\u00a0—\u00a0 R- D. 05-(UF-PE) Observe<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3792,"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-3794","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3794","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=3794"}],"version-history":[{"count":2,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3794\/revisions"}],"predecessor-version":[{"id":10637,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3794\/revisions\/10637"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3792"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=3794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}