{"id":80434,"date":"2024-01-14T13:04:33","date_gmt":"2024-01-14T13:04:33","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/fluxo-eletrico-superficie-formula-e-calculo\/"},"modified":"2024-01-20T09:46:57","modified_gmt":"2024-01-20T09:46:57","slug":"fluxo-eletrico-superficie-formula-e-calculo","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/","title":{"rendered":"Fluxo El\u00e9trico | Superf\u00edcie, F\u00f3rmula e C\u00e1lculo"},"content":{"rendered":"<h2>Fluxo El\u00e9trico: Uma Vis\u00e3o Geral<\/h2>\n<p>O conceito de fluxo el\u00e9trico \u00e9 fundamental na compreens\u00e3o dos campos el\u00e9tricos. Definido como o produto do campo el\u00e9trico pela componente da \u00e1rea perpendicular a esse campo, o fluxo el\u00e9trico varia de acordo com a for\u00e7a do campo el\u00e9trico, a \u00e1rea da superf\u00edcie e a orienta\u00e7\u00e3o relativa entre campo e superf\u00edcie.<\/p>\n<h2>Defini\u00e7\u00e3o e C\u00e1lculo do Fluxo El\u00e9trico<\/h2>\n<p>Para um campo el\u00e9trico uniforme E atravessando uma \u00e1rea A, o fluxo el\u00e9trico \u03a6 \u00e9 dado por:<\/p>\n<p><b>\u03a6 = E x A<\/b><\/p>\n<p>Essa defini\u00e7\u00e3o aplica-se a \u00e1reas planas e perpendiculares ao vetor E. No entanto, para superf\u00edcies curvas ou campos n\u00e3o uniformes, o c\u00e1lculo do fluxo el\u00e9trico requer uma integral de \u00e1rea, considerando a varia\u00e7\u00e3o do \u00e2ngulo.<\/p>\n<h2>Lei de Gauss e o Fluxo El\u00e9trico<\/h2>\n<p>A Lei de Gauss, que \u00e9 um pilar da eletrodin\u00e2mica cl\u00e1ssica, est\u00e1 intrinsecamente ligada ao conceito de fluxo el\u00e9trico. Ela afirma que o fluxo el\u00e9trico l\u00edquido atrav\u00e9s de uma superf\u00edcie fechada hipot\u00e9tica \u00e9 igual a 1\/\u03b5<sub>0<\/sub> vezes a carga el\u00e9trica l\u00edquida dentro dessa superf\u00edcie:<\/p>\n<p><b>\u03a6<sub>E<\/sub> = Q\/\u03b5<sub>0<\/sub><\/b><\/p>\n<p>Visualmente, este campo \u00e9 representado por linhas de fluxo, conhecidas como linhas de Gauss, que ilustram graficamente a intensidade e a dire\u00e7\u00e3o do campo el\u00e9trico, embora n\u00e3o tenham significado f\u00edsico real.<\/p>\n<h2>Densidade do Fluxo El\u00e9trico<\/h2>\n<p>A densidade das linhas de Gauss corresponde \u00e0 for\u00e7a do campo el\u00e9trico, ou seja, \u00e0 densidade do fluxo el\u00e9trico. Esta densidade \u00e9 proporcional ao n\u00famero total de linhas de campo el\u00e9trico que atravessam uma superf\u00edcie.<\/p>\n<h2>Aplica\u00e7\u00f5es Pr\u00e1ticas da Lei de Gauss<\/h2>\n<p>A Lei de Gauss \u00e9 particularmente \u00fatil para determinar campos el\u00e9tricos em situa\u00e7\u00f5es onde a distribui\u00e7\u00e3o de carga \u00e9 altamente sim\u00e9trica. A escolha da superf\u00edcie em an\u00e1lise deve sempre explorar essa simetria para simplificar o c\u00e1lculo.<\/p>\n<h2>Analogias e Leis Relacionadas<\/h2>\n<p>Assim como a Lei de Amp\u00e8re, que se aplica ao magnetismo, a Lei de Gauss \u00e9 uma das quatro equa\u00e7\u00f5es de Maxwell, fundamentais para a eletrodin\u00e2mica cl\u00e1ssica.<\/p>\n<h2>Unidade de Carga El\u00e9trica<\/h2>\n<p>O coulomb (s\u00edmbolo: C) \u00e9 a unidade do Sistema Internacional de Unidades (SI) para a carga el\u00e9trica. Definida como a quantidade de eletricidade transportada em um segundo por uma corrente de um ampere, a rela\u00e7\u00e3o \u00e9:<\/p>\n<p><b>1 C = 1 A \u00d7 1 s<\/b><\/p>\n<h2>Conclus\u00e3o<\/h2>\n<p>O fluxo el\u00e9trico \u00e9 um conceito essencial na f\u00edsica, oferecendo uma compreens\u00e3o profunda dos campos el\u00e9tricos e suas intera\u00e7\u00f5es com a mat\u00e9ria. Atrav\u00e9s da Lei de Gauss e das equa\u00e7\u00f5es de Maxwell, ele se estabelece como um pilar fundamental na eletrodin\u00e2mica.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/02\/Electric-flux-image.png\" alt=\"\" \/><\/p>\n<div style=\"text-align: center; font-size: 20px;\">\n    <a href=\"https:\/\/www.electricity-magnetism.org\/electrostatics\/gausss-law\/electric-flux\/\">Original Article<\/a>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>O fluxo el\u00e9trico atrav\u00e9s de uma \u00e1rea plana \u00e9 definido como o campo el\u00e9trico vezes a componente da \u00e1rea perpendicular ao campo.<\/p>\n","protected":false},"author":1,"featured_media":2099,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[14],"tags":[],"class_list":["post-80434","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nao-categorizado","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fluxo El\u00e9trico | Superf\u00edcie, F\u00f3rmula e C\u00e1lculo<\/title>\n<meta name=\"description\" content=\"O fluxo el\u00e9trico atrav\u00e9s de uma \u00e1rea plana \u00e9 definido como o campo el\u00e9trico vezes a componente da \u00e1rea perpendicular ao campo.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fluxo El\u00e9trico | Superf\u00edcie, F\u00f3rmula e C\u00e1lculo\" \/>\n<meta property=\"og:description\" content=\"O fluxo el\u00e9trico atrav\u00e9s de uma \u00e1rea plana \u00e9 definido como o campo el\u00e9trico vezes a componente da \u00e1rea perpendicular ao campo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/\" \/>\n<meta property=\"og:site_name\" content=\"Electricity - Magnetism\" \/>\n<meta property=\"article:published_time\" content=\"2024-01-14T13:04:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-20T09:46:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/02\/Electric-flux-image.png\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Matan\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/#website\",\"url\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/\",\"name\":\"Electricity - Magnetism\",\"description\":\"All about electricity and magnetism.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#primaryimage\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/02\/Electric-flux-image.png\",\"contentUrl\":\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/02\/Electric-flux-image.png\",\"width\":800,\"height\":800,\"caption\":\"The electric flux through a planar area is defined as the electric field times the component of the area perpendicular to the field.\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#webpage\",\"url\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/\",\"name\":\"Fluxo El\\u00e9trico | Superf\\u00edcie, F\\u00f3rmula e C\\u00e1lculo\",\"isPartOf\":{\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#primaryimage\"},\"datePublished\":\"2024-01-14T13:04:33+00:00\",\"dateModified\":\"2024-01-20T09:46:57+00:00\",\"author\":{\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/#\/schema\/person\/68f28ba0ad08ef355b436c5222a40b29\"},\"description\":\"O fluxo el\\u00e9trico atrav\\u00e9s de uma \\u00e1rea plana \\u00e9 definido como o campo el\\u00e9trico vezes a componente da \\u00e1rea perpendicular ao campo.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#breadcrumb\"},\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/electricity-magnetism-page\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Fluxo El\\u00e9trico | Superf\\u00edcie, F\\u00f3rmula e C\\u00e1lculo\"}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/#\/schema\/person\/68f28ba0ad08ef355b436c5222a40b29\",\"name\":\"Matan\",\"url\":\"https:\/\/www.electricity-magnetism.org\/pt-br\/author\/matan\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Fluxo El\u00e9trico | Superf\u00edcie, F\u00f3rmula e C\u00e1lculo","description":"O fluxo el\u00e9trico atrav\u00e9s de uma \u00e1rea plana \u00e9 definido como o campo el\u00e9trico vezes a componente da \u00e1rea perpendicular ao campo.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/","og_locale":"pt_BR","og_type":"article","og_title":"Fluxo El\u00e9trico | Superf\u00edcie, F\u00f3rmula e C\u00e1lculo","og_description":"O fluxo el\u00e9trico atrav\u00e9s de uma \u00e1rea plana \u00e9 definido como o campo el\u00e9trico vezes a componente da \u00e1rea perpendicular ao campo.","og_url":"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/","og_site_name":"Electricity - Magnetism","article_published_time":"2024-01-14T13:04:33+00:00","article_modified_time":"2024-01-20T09:46:57+00:00","og_image":[{"width":800,"height":800,"url":"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/02\/Electric-flux-image.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"Matan","Est. tempo de leitura":"2 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebSite","@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/#website","url":"https:\/\/www.electricity-magnetism.org\/pt-br\/","name":"Electricity - Magnetism","description":"All about electricity and magnetism.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.electricity-magnetism.org\/pt-br\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"pt-BR"},{"@type":"ImageObject","@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#primaryimage","inLanguage":"pt-BR","url":"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/02\/Electric-flux-image.png","contentUrl":"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/02\/Electric-flux-image.png","width":800,"height":800,"caption":"The electric flux through a planar area is defined as the electric field times the component of the area perpendicular to the field."},{"@type":"WebPage","@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#webpage","url":"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/","name":"Fluxo El\u00e9trico | Superf\u00edcie, F\u00f3rmula e C\u00e1lculo","isPartOf":{"@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#primaryimage"},"datePublished":"2024-01-14T13:04:33+00:00","dateModified":"2024-01-20T09:46:57+00:00","author":{"@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/#\/schema\/person\/68f28ba0ad08ef355b436c5222a40b29"},"description":"O fluxo el\u00e9trico atrav\u00e9s de uma \u00e1rea plana \u00e9 definido como o campo el\u00e9trico vezes a componente da \u00e1rea perpendicular ao campo.","breadcrumb":{"@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#breadcrumb"},"inLanguage":"pt-BR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/fluxo-eletrico-superficie-formula-e-calculo\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.electricity-magnetism.org\/pt-br\/electricity-magnetism-page\/"},{"@type":"ListItem","position":2,"name":"Fluxo El\u00e9trico | Superf\u00edcie, F\u00f3rmula e C\u00e1lculo"}]},{"@type":"Person","@id":"https:\/\/www.electricity-magnetism.org\/pt-br\/#\/schema\/person\/68f28ba0ad08ef355b436c5222a40b29","name":"Matan","url":"https:\/\/www.electricity-magnetism.org\/pt-br\/author\/matan\/"}]}},"_links":{"self":[{"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/posts\/80434","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/comments?post=80434"}],"version-history":[{"count":0,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/posts\/80434\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/media\/2099"}],"wp:attachment":[{"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/media?parent=80434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/categories?post=80434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.electricity-magnetism.org\/pt-br\/wp-json\/wp\/v2\/tags?post=80434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}