{"id":1266,"date":"2025-04-04T14:49:53","date_gmt":"2025-04-04T17:49:53","guid":{"rendered":"https:\/\/proexatas.com\/?page_id=1266"},"modified":"2025-04-04T15:12:38","modified_gmt":"2025-04-04T18:12:38","slug":"eletrodinamica","status":"publish","type":"page","link":"https:\/\/proexatas.com\/index.php\/eletrodinamica\/","title":{"rendered":"Eletrodin\u00e2mica"},"content":{"rendered":"\n<h4 id=\"wp-block-themeisle-blocks-advanced-heading-230ea54c\" class=\"wp-block-themeisle-blocks-advanced-heading wp-block-themeisle-blocks-advanced-heading-230ea54c\">Resistores<\/h4>\n\n\n<p style=\"text-align: justify;\"><strong>Q-01) <\/strong>Dois fios condutores A e B t\u00eam o mesmo comprimento; a resist\u00eancia de B \u00e9 1\/4 da resist\u00eancia de A e a resistividade de A \u00e9 9 vezes a de B. Sendo o di\u00e2metro de A, 4 milimetros, determinar o di\u00e2metro de B.<\/p>\n\n\n<div id=\"wp-block-themeisle-blocks-accordion-34417347\" class=\"wp-block-themeisle-blocks-accordion exclusive\">\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>Visualizar alternativa correta \/ coment\u00e1rio da quest\u00e3o<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p>Di\u00e2metro de B = 8\/3 mm.<\/p>\n<\/div><\/details>\n<\/div>\n\n\n<p style=\"text-align: justify;\"><strong>Q-02)\u00a0<\/strong>No instante em que se liga um determinado fio condutor a um circuito observa-se que sob certa diferen\u00e7a de pontencial o fio \u00e9 percorrido por uma corrente de 3 A, estando ele a uma temperatura de 20 \u00b0C. Depois de um certo tempo observa-se que a intensidade da corrente el\u00e9trica atrav\u00e9s do mesmo passou a ser de 2,5 A sob a mesma diferen\u00e7a de potencial anterior. Determinar a temperatura atingida pelo fio sabendo que o coeficiente de dilata\u00e7\u00e3o t\u00e9rmica linear \u00e9 igual a 0,004\/\u00b0C.<\/p>\n\n\n<div id=\"wp-block-themeisle-blocks-accordion-01815fc9\" class=\"wp-block-themeisle-blocks-accordion exclusive\">\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>Visualizar alternativa correta \/ coment\u00e1rio da quest\u00e3o<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p>70\u00b0C<\/p>\n<\/div><\/details>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Q-01) Dois fios condutores A e B t\u00eam o mesmo comprimento; a resist\u00eancia de B \u00e9 1\/4 da resist\u00eancia de A e a resistividade de A \u00e9 9 vezes a de B. Sendo o di\u00e2metro de A, 4 milimetros, determinar o di\u00e2metro de B. Q-02)\u00a0No instante em que se liga [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-1266","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/proexatas.com\/index.php\/wp-json\/wp\/v2\/pages\/1266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proexatas.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/proexatas.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/proexatas.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/proexatas.com\/index.php\/wp-json\/wp\/v2\/comments?post=1266"}],"version-history":[{"count":7,"href":"https:\/\/proexatas.com\/index.php\/wp-json\/wp\/v2\/pages\/1266\/revisions"}],"predecessor-version":[{"id":1278,"href":"https:\/\/proexatas.com\/index.php\/wp-json\/wp\/v2\/pages\/1266\/revisions\/1278"}],"wp:attachment":[{"href":"https:\/\/proexatas.com\/index.php\/wp-json\/wp\/v2\/media?parent=1266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}