{"id":3925,"date":"2023-01-09T10:49:42","date_gmt":"2023-01-09T10:49:42","guid":{"rendered":"https:\/\/7thclass.deltapublications.in\/?page_id=3925"},"modified":"2024-12-13T05:51:09","modified_gmt":"2024-12-13T05:51:09","slug":"s-14-b-heating-effect-of-electric-current","status":"publish","type":"page","link":"https:\/\/7thclass.deltapublications.in\/index.php\/s-14-b-heating-effect-of-electric-current\/","title":{"rendered":"S-14.b Heating Effect Of Electric Current"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Heating Effect Of Electric Current<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>Key Notes :<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-2df146d1aa726f8a14a156a64bf6dfc5\" style=\"color:#000060\">1. <strong>Definition of Heating Effect of Electric Current:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>When an electric current passes through a conductor, it produces heat. This is called the <strong>heating effect<\/strong> of electric current.<\/li>\n\n\n\n<li>The amount of heat produced depends on the <strong>resistance<\/strong> of the conductor and the <strong>amount of current<\/strong> flowing through it.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-79bb850df9faf8868e6aaf7fb4077b8f\" style=\"color:#000060\">2. <strong>Basic Concept:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>As the electric current flows through a conductor, the free electrons collide with the atoms of the conductor. This causes the atoms to vibrate more, producing heat.<\/li>\n\n\n\n<li>The <strong>higher the resistance<\/strong>, the more heat is produced. This is why some materials heat up more than others when electric current passes through them.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-027ee34012e4e3e6bed0e98387ba846f\" style=\"color:#000060\">3. <strong>Formula for Heat Produced:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">The heat produced can be calculated using the formula:<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"156\" height=\"33\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-15.png\" alt=\"\" class=\"wp-image-15323\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-15.png 156w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-15-150x33.png 150w\" sizes=\"auto, (max-width: 156px) 100vw, 156px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>H<\/strong> = Heat produced (in Joules)<\/li>\n\n\n\n<li><strong>I<\/strong> = Current (in Amperes)<\/li>\n\n\n\n<li><strong>R<\/strong> = Resistance (in Ohms)<\/li>\n\n\n\n<li><strong>t<\/strong> = Time for which current flows (in seconds)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-ac531e42fbaa1c30ddd4b8cc8a21385b\" style=\"color:#000060\">4. <strong>Applications of Heating Effect:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Electric Heaters:<\/strong> Devices like geysers, toasters, and room heaters use the heating effect to convert electrical energy into heat.<\/li>\n\n\n\n<li><strong>Incandescent Bulbs:<\/strong> The filament in the bulb gets heated by the current, causing it to emit light.<\/li>\n\n\n\n<li><strong>Fuses:<\/strong> Fuses are designed to break the circuit when excessive current flows, as too much heat could damage the circuit.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-484bd0adc7627790988bfdaf2f1e6b55\" style=\"color:#000060\">5. <strong>Factors Affecting Heating Effect:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Material of the Conductor:<\/strong> Conductors with higher resistance, like nichrome, heat up more than conductors like copper or aluminum.<\/li>\n\n\n\n<li><strong>Current (I):<\/strong> The greater the amount of current, the more heat is produced.<\/li>\n\n\n\n<li><strong>Resistance (R):<\/strong> The higher the resistance of the conductor, the greater the heat produced.<\/li>\n\n\n\n<li><strong>Time (t):<\/strong> The longer the current flows, the more heat is produced.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-ff1018d09671f0cbf3fa58fc7dfdc529\" style=\"color:#000060\">6. <strong>Precautions and Safety:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Overheating Risk:<\/strong> If the current exceeds safe levels, the wires or devices may overheat and cause damage or fires. This is why safety devices like <strong>fuses<\/strong> and <strong>circuit breakers<\/strong> are used.<\/li>\n\n\n\n<li><strong>Insulation:<\/strong> Wires are often insulated to prevent accidental contact with the current and to avoid heat loss.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-b9d9c309206766051eff8da53552d2be\" style=\"color:#000060\">7. <strong>Example:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Electric Iron:<\/strong> In an electric iron, the current flows through a metal coil, which has high resistance. This produces heat, which is used to press clothes.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/82408\/909\/864\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-67.png\" alt=\"\" class=\"wp-image-6047\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-67.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-67-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-67-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-67-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/81732\/332\/759\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-62.png\" alt=\"\" class=\"wp-image-6048\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-62.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-62-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-62-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-62-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Heating Effect Of Electric Current Key Notes : 1. Definition of Heating Effect of Electric Current: 2. Basic Concept: 3. Formula for Heat Produced: 4. Applications of Heating Effect: 5. Factors Affecting Heating Effect: 6. Precautions and Safety: 7. Example: Let&#8217;s practice!<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"footnotes":""},"class_list":["post-3925","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3925","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3925"}],"version-history":[{"count":13,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3925\/revisions"}],"predecessor-version":[{"id":15325,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3925\/revisions\/15325"}],"wp:attachment":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}