{"id":25628,"date":"2023-05-09T10:14:05","date_gmt":"2023-05-09T09:14:05","guid":{"rendered":"https:\/\/www.acasinhadamatematica.pt\/?p=25628"},"modified":"2023-06-14T09:02:27","modified_gmt":"2023-06-14T08:02:27","slug":"num-circuiro-eletrico","status":"publish","type":"post","link":"https:\/\/www.acasinhadamatematica.pt\/?p=25628","title":{"rendered":"Num circuito el\u00e9trico"},"content":{"rendered":"\n<p><ul id='GTTabs_ul_25628' class='GTTabs' style='display:none'>\n<li id='GTTabs_li_0_25628' class='GTTabs_curr'><a  id=\"25628_0\" onMouseOver=\"GTTabsShowLinks('Enunciado'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Enunciado<\/a><\/li>\n<li id='GTTabs_li_1_25628' ><a  id=\"25628_1\" onMouseOver=\"GTTabsShowLinks('Resolu\u00e7\u00e3o'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Resolu\u00e7\u00e3o<\/a><\/li>\n<\/ul>\n\n<div class='GTTabs_divs GTTabs_curr_div' id='GTTabs_0_25628'>\n<span class='GTTabs_titles'><b>Enunciado<\/b><\/span><\/p>\n<p><a href=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2.png\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"25630\" data-permalink=\"https:\/\/www.acasinhadamatematica.pt\/?attachment_id=25630\" data-orig-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2.png\" data-orig-size=\"320,240\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"8_Pag190-2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2.png\" class=\"alignright wp-image-25630\" src=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2-300x225.png 300w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2.png 320w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Num circuito el\u00e9trico, a diferen\u00e7a de potencial (<em>V<\/em>) entre dois pontos est\u00e1 relacionada com a intensidade da corrente que o percorre (<em>I<\/em>) e com a resist\u00eancia do circuito (<em>R<\/em>) segundo a f\u00f3rmula \\(V = RI\\).<\/p>\n<ol>\n<li>Qual \u00e9 a diferen\u00e7a de potencial (em volt) num circuito quando a intensidade da corrente \u00e9 12 ampere e a sua resist\u00eancia \u00e9 20 ohm?<\/li>\n<li>Resolve a equa\u00e7\u00e3o dada:<br \/>a) em ordem a <em>R<\/em>;<br \/>b) em ordem a <em>I<\/em>.<br \/><br \/><\/li>\n<\/ol>\n<p><div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_next'><a href='#GTTabs_ul_25628' onClick='GTTabs_show(1,25628)'>Resolu\u00e7\u00e3o &gt;&gt;<\/a><\/span><\/div><\/div>\n\n<div class='GTTabs_divs' id='GTTabs_1_25628'>\n<span class='GTTabs_titles'><b>Resolu\u00e7\u00e3o<\/b><\/span><!--more--><\/p>\n<blockquote>\n<p><a href=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2.png\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"25630\" data-permalink=\"https:\/\/www.acasinhadamatematica.pt\/?attachment_id=25630\" data-orig-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2.png\" data-orig-size=\"320,240\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"8_Pag190-2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2.png\" class=\"alignright wp-image-25630\" src=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2-300x225.png 300w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2.png 320w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Num circuito el\u00e9trico, a diferen\u00e7a de potencial (<em>V<\/em>) entre dois pontos est\u00e1 relacionada com a intensidade da corrente que o percorre (<em>I<\/em>) e com a resist\u00eancia do circuito (<em>R<\/em>) segundo a f\u00f3rmula \\(V = RI\\).<\/p>\n<\/blockquote>\n<p>\u00a0<\/p>\n<ol>\n<li>A diferen\u00e7a de potencial (em volt) pedida \u00e9 \\(V = 20 \\times 12 = 240\\) V.<br \/><br \/><\/li>\n<li>Resolvendo a equa\u00e7\u00e3o dada:<br \/>a) em ordem a <em>R<\/em>:<br \/>\\[\\begin{array}{*{20}{l}}{V = RI}&amp; \\Leftrightarrow &amp;{R = \\frac{V}{I}}\\end{array}\\]<br \/>b) em ordem a <em>I<\/em>:<br \/>\\[\\begin{array}{*{20}{l}}{V = RI}&amp; \\Leftrightarrow &amp;{I = \\frac{V}{R}}\\end{array}\\]<\/li>\n<\/ol>\n<div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_prev'><a href='#GTTabs_ul_25628' onClick='GTTabs_show(0,25628)'>&lt;&lt; Enunciado<\/a><\/span><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Enunciado Resolu\u00e7\u00e3o Enunciado Num circuito el\u00e9trico, a diferen\u00e7a de potencial (V) entre dois pontos est\u00e1 relacionada com a intensidade da corrente que o percorre (I) e com a resist\u00eancia do circuito (R) segundo a&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":25631,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[100,97,714],"tags":[424,192],"series":[],"class_list":["post-25628","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-8--ano","category-aplicando","category-equacoes-literais-e-sistemas","tag-8-o-ano","tag-equacoes-literais"],"views":47,"jetpack_featured_media_url":"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/05\/8_Pag190-2_520x245.png","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/25628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=25628"}],"version-history":[{"count":0,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/25628\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/media\/25631"}],"wp:attachment":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=25628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25628"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=25628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}