{"id":210167,"date":"2025-04-30T05:57:52","date_gmt":"2025-04-30T05:57:52","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=210167"},"modified":"2025-04-30T05:57:54","modified_gmt":"2025-04-30T05:57:54","slug":"please-explain-how-does-an-electroscope-works","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/30\/please-explain-how-does-an-electroscope-works\/","title":{"rendered":"Please explain how does an electroscope works"},"content":{"rendered":"\n<p>Please explain how does an electroscope works<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>An <strong>electroscope<\/strong> is a scientific instrument used to detect the presence and magnitude of electric charge on a body. It works based on the principles of electrostatic force and charge induction.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How an Electroscope Works (Correct Answer):<\/h3>\n\n\n\n<p>An electroscope detects electric charge by using metal leaves or a needle that responds to the electrostatic force. When a charged object is brought near or touches the metal top (usually a conducting knob), electrons either move into or out of the electroscope, depending on the nature of the charge. This causes the metal leaves or needle inside to move apart due to repulsion between like charges.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Detailed Explanation (Approx. 300 Words):<\/h3>\n\n\n\n<p>An electroscope typically consists of a <strong>metal rod<\/strong> connected to a <strong>metal knob<\/strong> at the top and two thin <strong>metallic leaves<\/strong> (often gold or aluminum) enclosed in a glass container at the bottom. The entire setup is insulated from the surroundings.<\/p>\n\n\n\n<p>When an uncharged electroscope is at rest, the metal leaves hang straight down because they are neutral and not repelling each other. However, when a charged object is brought close to or touches the metal knob, electrons are either attracted to or repelled from the knob, depending on whether the object is positively or negatively charged.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If the object is <strong>positively charged<\/strong>, it attracts electrons from the leaves toward the knob. This leaves both leaves positively charged, so they <strong>repel<\/strong> each other and diverge.<\/li>\n\n\n\n<li>If the object is <strong>negatively charged<\/strong>, it pushes electrons down into the leaves, giving both a <strong>negative charge<\/strong>, again causing them to repel and diverge.<\/li>\n<\/ul>\n\n\n\n<p>This movement of the leaves indicates the presence of electric charge. The greater the divergence of the leaves, the stronger the charge. However, the electroscope cannot distinguish between positive and negative charges unless used in combination with known charges.<\/p>\n\n\n\n<p>An electroscope demonstrates two important electrostatic principles: <strong>like charges repel<\/strong> and <strong>electrostatic induction<\/strong>. It\u2019s a foundational tool in understanding electricity, commonly used in physics labs to visualize the otherwise invisible concept of electric charge.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Please explain how does an electroscope works The correct answer and explanation is : An electroscope is a scientific instrument used to detect the presence and magnitude of electric charge on a body. It works based on the principles of electrostatic force and charge induction. How an Electroscope Works (Correct Answer): An electroscope detects electric [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-210167","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/210167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=210167"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/210167\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=210167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=210167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=210167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}