{"id":21281,"date":"2025-06-15T09:38:25","date_gmt":"2025-06-15T09:38:25","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=21281"},"modified":"2025-06-15T09:38:30","modified_gmt":"2025-06-15T09:38:30","slug":"which-point-a-or-b-has-a-larger-electric-potential","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/which-point-a-or-b-has-a-larger-electric-potential\/","title":{"rendered":"Which point, A or B, has a larger electric potential"},"content":{"rendered":"\n<p>Which point, A or B, has a larger electric potential? What is the potential difference between A and B? Assume that E=1200V\/m .<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n<p>To determine <strong>which point, A or B, has a larger electric potential<\/strong> and <strong>the potential difference between them<\/strong>, we need to know:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The direction of the electric field (<strong>E<\/strong>),<\/li>\n\n\n\n<li>The relative position of points A and B along the electric field.<\/li>\n<\/ul>\n\n\n\n<p>Since the question doesn&#8217;t specify the direction or orientation of A and B, let&#8217;s assume a common scenario where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Points A and B lie along a straight line in the direction of the electric field.<\/li>\n\n\n\n<li>The electric field E=1200\u2009V\/mE = 1200 \\, \\text{V\/m} points <strong>from A to B<\/strong>, which is the conventional direction of the electric field (from higher potential to lower potential).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 1: Direction of Electric Field and Potential<\/strong><\/h3>\n\n\n\n<p>The <strong>electric field always points from higher to lower potential<\/strong>.<br>So if the field points from <strong>A to B<\/strong>, then:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Point <strong>A<\/strong> has the <strong>higher potential<\/strong>.<\/li>\n\n\n\n<li>Point <strong>B<\/strong> has the <strong>lower potential<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2: Potential Difference Calculation<\/strong><\/h3>\n\n\n\n<p>The potential difference (\u0394V\\Delta V) between two points in a uniform electric field is given by: \u0394V=VB\u2212VA=\u2212E\u22c5d\\Delta V = V_B &#8211; V_A = -E \\cdot d<\/p>\n\n\n\n<p>Where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>E=1200\u2009V\/mE = 1200 \\, \\text{V\/m},<\/li>\n\n\n\n<li>dd is the distance between A and B <strong>along<\/strong> the field direction,<\/li>\n\n\n\n<li>The negative sign shows that potential decreases in the direction of the field.<\/li>\n<\/ul>\n\n\n\n<p>If the distance between A and B is, say, <strong>0.5 meters<\/strong>, then: \u0394V=\u22121200\u22c50.5=\u2212600\u2009V\\Delta V = -1200 \\cdot 0.5 = -600 \\, \\text{V}<\/p>\n\n\n\n<p>So:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>VB=VA\u2212600\u2009VV_B = V_A &#8211; 600 \\, \\text{V}<\/li>\n\n\n\n<li>The potential difference is <strong>600 volts<\/strong>,<\/li>\n\n\n\n<li>And <strong>point A has the higher electric potential<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 Final Answer:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Point A has a larger electric potential.<\/strong><\/li>\n\n\n\n<li><strong>The potential difference between A and B is 600 volts<\/strong>, assuming a 0.5 m separation along the field direction.<\/li>\n<\/ul>\n\n\n\n<p>If a different distance is given, simply multiply it by 1200 V\/m to get the potential difference.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Which point, A or B, has a larger electric potential? What is the potential difference between A and B? Assume that E=1200V\/m . The correct answer and explanation is: To determine which point, A or B, has a larger electric potential and the potential difference between them, we need to know: Since the question doesn&#8217;t [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21281","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/21281","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=21281"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/21281\/revisions"}],"predecessor-version":[{"id":21282,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/21281\/revisions\/21282"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=21281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=21281"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=21281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}