{"id":234,"date":"2026-10-03T18:20:00","date_gmt":"2026-10-03T17:20:00","guid":{"rendered":"https:\/\/wpcalc.com\/pt\/calculadora-lei-de-coulomb\/"},"modified":"2026-10-03T18:20:00","modified_gmt":"2026-10-03T17:20:00","slug":"calculadora-lei-de-coulomb","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/pt\/fisica\/calculadora-lei-de-coulomb\/","title":{"rendered":"Calculadora da Lei de Coulomb"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Calcule a For\u00e7a El\u00e9trica Entre Duas Cargas<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"234\" data-favorite-title=\"Lei de Coulomb\" data-favorite-url=\"https:\/\/wpcalc.com\/pt\/fisica\/calculadora-lei-de-coulomb\/\" data-favorite-excerpt=\"Calcule a for\u00e7a eletrost\u00e1tica entre duas cargas pontuais usando a lei de Coulomb. Insira as duas cargas (nC, \u03bcC, mC, C ou e), a dist\u00e2ncia entre elas e obtenha a for\u00e7a em newtons, al\u00e9m da sua dire\u00e7\u00e3o.\" aria-label=\"Adicionar aos favoritos\" data-favorite-icon=\"icon icon-physic\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/pt\/fisica\/calculadora-lei-de-coulomb\/\" method=\"POST\" class=\"calculator\" id=\"calculator-234\" data-post=\"234\"><fieldset class=\"fieldset-input is-1\"><legend class=\"sr-only\">Campos de entrada<\/legend><div class=\"field is-single has-term\" id=\"input-1\"><label for=\"field-1\">Carga 1 (q\u2081)<\/label><div class=\"term\">q\u2081<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"number\" name=\"carga_1_q\" id=\"field-1\" aria-describedby=\"calc-info-1\" placeholder=\"e.g. 5\" step=\"any\" value=\"5\"\/><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"unidade\" aria-label=\"Unidade\"><option value=\"nC\">nC<\/option><option value=\"uCl\" selected>\u03bcC<\/option><option value=\"mC\">mC<\/option><option value=\"C\">C<\/option><option value=\"e\">e (elementar)<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-1\">Carga el\u00e9trica da primeira part\u00edcula. Insira um valor negativo para uma carga negativa.<\/small><\/div><div class=\"field is-single has-term\" id=\"input-2\"><label for=\"field-3\">Carga 2 (q\u2082)<\/label><div class=\"term\">q\u2082<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"number\" name=\"carga_2_q\" id=\"field-3\" aria-describedby=\"calc-info-3\" placeholder=\"e.g. -3\" step=\"any\" value=\"-3\"\/><div class=\"grid grid-cols-1\"><select id=\"field-4\" name=\"unidade\" aria-label=\"Unidade\"><option value=\"nC\">nC<\/option><option value=\"uCl\" selected>\u03bcC<\/option><option value=\"mC\">mC<\/option><option value=\"C\">C<\/option><option value=\"e\">e (elementar)<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-3\">Carga el\u00e9trica da segunda part\u00edcula. Sinais opostos se atraem, sinais iguais se repelem.<\/small><\/div><div class=\"field is-single has-term\" id=\"input-3\"><label for=\"field-5\">Dist\u00e2ncia de separa\u00e7\u00e3o (r)<\/label><div class=\"term\">r<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"text\" name=\"distncia_de_separao_r\" id=\"field-5\" aria-describedby=\"calc-info-5\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 10\" min=\"0\" value=\"10\"\/><div class=\"grid grid-cols-1\"><select id=\"field-6\" name=\"unidade\" aria-label=\"Unidade\"><option value=\"nm\">nm<\/option><option value=\"um\">\u03bcm<\/option><option value=\"mm\">mm<\/option><option value=\"cm\" selected>cm<\/option><option value=\"m\">m<\/option><option value=\"in\">in<\/option><option value=\"ft\">ft<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-5\">Dist\u00e2ncia em linha reta entre os centros das duas cargas. Deve ser maior que zero.<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Recalcular\" id=\"calculate-button\" data-post=\"234\">Calcular<\/button><button type=\"reset\">Redefinir<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calcular automaticamente<\/label><small>Se ativado, o resultado \u00e9 atualizado automaticamente quando voc\u00ea altera qualquer valor.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Resultados da Lei de Coulomb<\/h3><div class=\"result-box\"><div class=\"field-result is-column\" id=\"output-1\"><span class=\"field-title\"><span>For\u00e7a eletrost\u00e1tica entre as cargas<\/span><\/span><span class=\"field-value\" id=\"result-1\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-2\"><span class=\"field-title\"><span>F\u00f3rmula, valores aplicados e notas<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copiar link para este c\u00e1lculo<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Deixar um coment\u00e1rio<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"234\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">O que voc\u00ea achou deste resultado?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Curti <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">\u00datil <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confuso <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Decepcionado <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Impreciso <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>F\u00f3rmula da Lei de Coulomb<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">F\u00f3rmula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ F = k \\, \\frac{|q_1 \\, q_2|}{r^2}, \\qquad k = \\frac{1}{4\\pi\\varepsilon_0} \\approx 8.9875 \\times 10^9 \\ \\text{N\u00b7m}^2\/\\text{C}^2 \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Onde:<\/strong><\/p>\n<ul>\n<li>\\(F\\) \u2014 m\u00f3dulo da for\u00e7a eletrost\u00e1tica (N)<\/li>\n<li>\\(q_1, q_2\\) \u2014 as duas cargas el\u00e9tricas (C)<\/li>\n<li>\\(r\\) \u2014 dist\u00e2ncia entre os centros das cargas (m)<\/li>\n<li>\\(k\\) \u2014 constante de Coulomb, definida a partir da permitividade do v\u00e1cuo \\(\\varepsilon_0 = 8.854 \\times 10^{-12}\\) F\/m<\/li>\n<\/ul>\n<p>A f\u00f3rmula d\u00e1 o m\u00f3dulo da for\u00e7a; o sinal do produto \\(q_1 q_2\\) indica a dire\u00e7\u00e3o: cargas de mesmo sinal repelem-se, cargas de sinais opostos atraem-se.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-2\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Lei de Coulomb \u2013 Exemplo de C\u00e1lculo<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Exemplo:<\/strong> uma carga de \\(q_1 = 5\\ \\mu\\text{C}\\) \u00e9 colocada a 10 cm de uma carga de \\(q_2 = -3\\ \\mu\\text{C}\\). Determine a for\u00e7a entre elas.<\/p>\n<p>\\[ F = 8.9875 \\times 10^9 \\times \\frac{|5\\times 10^{-6} \\times (-3\\times 10^{-6})|}{(0.10)^2} \\]<br \/>\n\\[ F = 8.9875 \\times 10^9 \\times \\frac{1.5\\times 10^{-11}}{0.01} \\approx 13.48\\ \\text{N} \\]<\/p>\n<p><strong>Resultado:<\/strong> o m\u00f3dulo da for\u00e7a \u00e9 aproximadamente <strong>13,48&nbsp;N<\/strong>. Como as cargas t\u00eam sinais opostos, a for\u00e7a \u00e9 <strong>atrativa<\/strong> \u2014 cada carga \u00e9 puxada em dire\u00e7\u00e3o \u00e0 outra.<\/p>\n<p>\n\r\n<\/section>\n<h2>Como Usar a Calculadora<\/h2>\n<ol>\n<li>Insira o valor da <strong>Carga 1 (q\u2081)<\/strong> e escolha a sua unidade (nC, \u03bcC, mC, C ou cargas elementares). Use o sinal menos para uma carga negativa.<\/li>\n<li>Insira a <strong>Carga 2 (q\u2082)<\/strong> com a sua unidade da mesma forma.<\/li>\n<li>Insira a <strong>Dist\u00e2ncia de separa\u00e7\u00e3o (r)<\/strong> entre os centros das duas cargas e escolha uma unidade de comprimento (nm, \u03bcm, mm, cm, m, pol. ou p\u00e9s). O valor deve ser maior que zero.<\/li>\n<li>Leia o resultado: o m\u00f3dulo da for\u00e7a em newtons (com convers\u00f5es para mN, \u03bcN, kN, lbf e dinas), se a intera\u00e7\u00e3o \u00e9 atrativa ou repulsiva, e uma tabela com todos os valores intermedi\u00e1rios.<\/li>\n<\/ol>\n<h2>O Que \u00c9 a Lei de Coulomb?<\/h2>\n<p>A lei de Coulomb, publicada pelo f\u00edsico franc\u00eas Charles-Augustin de Coulomb em 1785, descreve a for\u00e7a eletrost\u00e1tica entre dois objetos carregados. Ela afirma que a for\u00e7a \u00e9 diretamente proporcional ao produto das duas cargas e inversamente proporcional ao quadrado da dist\u00e2ncia entre elas. De muitas formas, ela espelha a lei da gravita\u00e7\u00e3o universal de Newton \u2014 mas enquanto a gravidade apenas atrai, as for\u00e7as el\u00e9tricas podem atrair <em>ou<\/em> repelir, dependendo dos sinais das cargas.<\/p>\n<p>O sinal do resultado carrega um significado. Se \\(q_1\\) e \\(q_2\\) t\u00eam o mesmo sinal, o seu produto \u00e9 positivo e a for\u00e7a \u00e9 repulsiva: as cargas afastam-se mutuamente. Se os sinais s\u00e3o opostos, o produto \u00e9 negativo e a for\u00e7a \u00e9 atrativa. A calculadora apresenta o m\u00f3dulo da for\u00e7a juntamente com esta dire\u00e7\u00e3o, para que saiba sempre tanto a intensidade como a natureza da intera\u00e7\u00e3o.<\/p>\n<p>A depend\u00eancia do inverso do quadrado da dist\u00e2ncia \u00e9 a caracter\u00edstica pr\u00e1tica mais importante da lei. Reduzir a dist\u00e2ncia a metade torna a for\u00e7a quatro vezes maior; duplicar a dist\u00e2ncia torna-a quatro vezes menor. \u00c9 por isso que as for\u00e7as eletrost\u00e1ticas dominam a curta dist\u00e2ncia \u2014 duas cargas elementares afastadas de 1 nm exercem for\u00e7as na escala das liga\u00e7\u00f5es qu\u00edmicas, enquanto as mesmas cargas a um metro de dist\u00e2ncia seriam completamente indetect\u00e1veis.<\/p>\n<p>A lei de Coulomb \u00e9 o fundamento da eletrost\u00e1tica. Ela est\u00e1 na base da estrutura de \u00e1tomos e mol\u00e9culas, do comportamento de capacitores, dos campos el\u00e9tricos e de tecnologias que v\u00e3o das impressoras a laser aos precipitadores eletrost\u00e1ticos. Assim que conhecer a for\u00e7a, pode combin\u00e1-la com a segunda lei de Newton para prever o movimento de part\u00edculas carregadas.<\/p>\n<h2>Pressupostos, Limita\u00e7\u00f5es e Dicas<\/h2>\n<ul>\n<li><strong>Cargas pontuais:<\/strong> a f\u00f3rmula assume que cada carga est\u00e1 concentrada num \u00fanico ponto, ou \u00e9 uma esfera uniformemente carregada em que r \u00e9 medido entre os centros. Para objetos carregados irregulares a curta dist\u00e2ncia, a for\u00e7a real \u00e9 diferente.<\/li>\n<li><strong>V\u00e1cuo:<\/strong> o c\u00e1lculo usa a permitividade do v\u00e1cuo \\(\\varepsilon_0\\). Num meio com permitividade relativa \\(\\varepsilon_r\\), a for\u00e7a \u00e9 menor por um fator \\(\\varepsilon_r\\) \u2014 cerca de 80\u00d7 mais fraca na \u00e1gua.<\/li>\n<li><strong>A dist\u00e2ncia deve ser positiva:<\/strong> duas cargas exatamente no mesmo ponto dariam uma for\u00e7a infinita, por isso a calculadora exige r &gt; 0.<\/li>\n<li><strong>Cargas em repouso:<\/strong> a lei de Coulomb aplica-se a cargas em repouso. Cargas em movimento criam tamb\u00e9m efeitos magn\u00e9ticos descritos pelo eletromagnetismo.<\/li>\n<li><strong>Valores realistas:<\/strong> a eletricidade est\u00e1tica do dia a dia envolve nanocoulombs a microcoulombs. Se o resultado sair em kilonewtons ou mais, verifique as unidades \u2014 um milicoulomb j\u00e1 \u00e9 uma quantidade de carga muito grande.<\/li>\n<li><strong>Pares de for\u00e7as:<\/strong> pela terceira lei de Newton, ambas as cargas sofrem o mesmo m\u00f3dulo de for\u00e7a, em dire\u00e7\u00f5es opostas ao longo da reta que as une.<\/li>\n<\/ul>\n<p>Depois de encontrar a for\u00e7a el\u00e9trica, pode us\u00e1-la em outros problemas de mec\u00e2nica \u2014 por exemplo, combine-a com a <a href=\"https:\/\/wpcalc.com\/pt\/fisica\/calculadora-forca-centripeta\/\">Calculadora de For\u00e7a Centr\u00edpeta<\/a> para analisar um el\u00e9tron em \u00f3rbita num n\u00facleo, verifique o equil\u00edbrio com outras for\u00e7as usando a <a href=\"https:\/\/wpcalc.com\/pt\/fisica\/calculadora-forca-atrito\/\">Calculadora de For\u00e7a de Atrito<\/a> ou a <a href=\"https:\/\/wpcalc.com\/pt\/fisica\/calculadora-tencao-em-cordas\/\">Calculadora de Tens\u00e3o em Cordas<\/a>, ou explore o lado energ\u00e9tico da intera\u00e7\u00e3o com a <a href=\"https:\/\/wpcalc.com\/pt\/fisica\/energia-potencial\/\">Calculadora de Energia Potencial<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calcule a for\u00e7a eletrost\u00e1tica entre duas cargas pontuais usando a lei de Coulomb. Insira as duas cargas (nC, \u03bcC, mC, C ou e), a dist\u00e2ncia entre elas e obtenha a for\u00e7a em newtons, al\u00e9m da sua dire\u00e7\u00e3o.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[55],"class_list":["post-234","post","type-post","status-publish","format-standard","hentry","category-fisica","tag-mecanica"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/234","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/comments?post=234"}],"version-history":[{"count":3,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/234\/revisions"}],"predecessor-version":[{"id":2607,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/234\/revisions\/2607"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/media?parent=234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/categories?post=234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/tags?post=234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}