{"id":121925,"date":"2022-02-19T01:01:03","date_gmt":"2022-02-18T19:31:03","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=121925"},"modified":"2023-12-13T13:18:25","modified_gmt":"2023-12-13T07:48:25","slug":"ncert-exemplar-solutions-for-class-10-science-chapter-12","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-10\/science\/chapter-12-electricity\/","title":{"rendered":"NCERT Exemplar Solutions for Class 10 Science Chapter 12 Electricity"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-10\/science\/chapter-12-electricity\/#NCERT_Exemplar_Class_10_Science_Chapter_12_Electricity\" title=\"NCERT Exemplar Class 10 Science Chapter 12 Electricity\">NCERT Exemplar Class 10 Science Chapter 12 Electricity<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-10\/science\/chapter-12-electricity\/#Long_Answer_Type_Questions\" title=\"Long Answer Type Questions\">Long Answer Type Questions<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-10\/science\/chapter-12-electricity\/#More_Resources_for_Class_10\" title=\"More Resources for Class 10\">More Resources for Class 10<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-10\/science\/chapter-12-electricity\/#Frequently_Asked_Questions_FAQs\" title=\"Frequently Asked Questions (FAQs)\">Frequently Asked Questions (FAQs)<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-10\/science\/chapter-12-electricity\/#List_the_subjects_covered_in_NCERT_Exemplar_Solutions_for_Class_10_Sciences_Chapter_12_Electricity\" title=\"List the subjects covered in NCERT Exemplar Solutions for Class 10 Science&#039;s Chapter 12 Electricity.\">List the subjects covered in NCERT Exemplar Solutions for Class 10 Science&#039;s Chapter 12 Electricity.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-10\/science\/chapter-12-electricity\/#Should_really_students_download_the_NCERT_Answers_for_10th_class_Science_Chapter_12_PDF_from_the_NCERT_webpage\" title=\"Should really students download the NCERT Answers for 10th class Science Chapter 12 PDF from the NCERT webpage?\">Should really students download the NCERT Answers for 10th class Science Chapter 12 PDF from the NCERT webpage?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p><span style=\"font-size: 12pt;\"><strong>Download NCERT Exemplar Solutions for Class 10 Science Chapter 12 Electricity<\/strong> gives solutions and explanations to all of the textbook&#8217;s exercise questions. Questions about an electric cell, an electric bulb, electric circuits, switches, conductors and insulators, and examples of conductors and insulators may be found in these <a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/\"><strong>NCERT Exemplar Solutions<\/strong><\/a>. It has a range of questions, such as fill-in-the-blanks, true\/false, circuit diagram, and descriptive responding questions, to help students understand the ideas.<\/span><\/p>\n<p><span style=\"font-size: 12pt;\">Here at Infinity Learn, you can find the greatest <a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-10\/science\/\"><strong>NCERT Exemplar Solutions for Class 10 Science<\/strong><\/a> on the internet. Our curriculum is the product of our highly qualified teachers&#8217; and experts&#8217; knowledge and academic insights. We attempt to convey maximum informational value in addition to offering the best <a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-10\/\"><strong>NCERT Exemplar Solutions for Class 10<\/strong><\/a> answers. Of course, this increases the complexity of the information, but we&#8217;ve made sure that the language is straightforward and that every technical jargon is explained thoroughly.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Exemplar_Class_10_Science_Chapter_12_Electricity\"><\/span>NCERT Exemplar Class 10 Science Chapter 12 Electricity<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Short Answer Type Questions<\/strong><\/p>\n<p><strong>1.Three 2 \u2126 resistors, A, B and C are connected as shown in figure. Each of them dissipates energy and can withstand a maximum power of 18 W without melting. Find the maximum current that can flow through the three resistors.<\/strong><\/p>\n<p><strong>Answer. <\/strong>Here, P = 18 W<\/p>\n<p>Since A is in series with the parallel combination of B and C. So, it carries maximum current. Let IB and Ic be the current flowing through B and C respectively. As they are in parallel, potential difference across them will be same, s<\/p>\n<p><strong>2.Should the resistance of an ammeter be low or high? Give reason.<\/strong><\/p>\n<p><strong>Answer. <\/strong>The resistance of an ammeter should be low so that it will not disturb the magnitude of current flowing through the circuit when connected in series in a circuit.<\/p>\n<p><strong>3.How does use of a fuse wire protect electrical appliances?<\/strong><\/p>\n<p><strong>Answer.<\/strong> The fuse wire is always connected in series with the live wire or electrical devices. If the flow of current exceeds the specified preset value due to some reason, the heat produced melts it and disconnects the circuit or the device from the mains. In this way, fuse wire protects the electrical appliances.<\/p>\n<p><strong>4.What is electrical resistivity? In a series electrical circuit comprising a resistor made up of a metallic wire, the ammeter reads 5 A. The reading of the ammeter decreases to half when the length of the wire is doubled. Why?<\/strong><\/p>\n<p><strong>Answer.<\/strong> The resistance offered by a metallic wire of unit length and unit cross-sectional area is called electrical resistivity. We know that Hence, when the length of wire is doubled, the resistance becomes double and current decreases to half.<\/p>\n<p>As in parallel combination, potential difference across them remains same. So i.e., current is divided in both the arms equally. So,<\/p>\n<p>l<sub>1<\/sub> = l<sub>2 <\/sub>= lA.<\/p>\n<p>Hence, there will be no change in the current through 5 n conductor. Also there will be no change in the potential difference across the lamp as in both cases, current through the lamp remains same i.e. l A.<\/p>\n<p><strong>6.Why is parallel arrangement used in domestic wiring?<\/strong><\/p>\n<p><strong>Answer. <\/strong>Parallel arrangement is used in domestic wiring because<\/p>\n<p>(i) Each appliance gets the same voltage as that of the mains supply.<\/p>\n<p>(ii) If one component is switched off, others can work properly.<\/p>\n<p>(iii) Fault in any branch of the circuit can be easily identified.<\/p>\n<p><strong>7.B<sub>1<\/sub> B<sub>2<\/sub> and B<sub>3<\/sub> are three identical bulbs connected as shown in figure. When all the three bulbs glow, a current of 3A is recorded by the ammeter A<\/strong><\/p>\n<p><strong>Answer.<\/strong><\/p>\n<p>(i) What happens to the glow of the other two bulbs when the bulb B<sub>1<\/sub> gets fused?<\/p>\n<p>(ii) What happens to the reading of A<sub>1,<\/sub> A<sub>2,<\/sub> A<sub>3<\/sub>  and A when the bulb gets fused?<\/p>\n<p>(iii) How much power is dissipated in the circuit when all the three bulbs glow together?<\/p>\n<p>(i) Since B<sub>1<\/sub> ,B<sub>2<\/sub> and B<sub>3<\/sub>  are in parallel, the potential difference across each of them will remain same. So when the bulb Bx gets fused,B<sub>1<\/sub> ,B<sub>2<\/sub> and B<sub>3<\/sub><strong> <\/strong><strong> <\/strong>have the same potential and continues with the same energy dissipated per second, i.e. they will glow continuously as they were glowing before.<\/p>\n<p>(ii) Resistance of the parallel combination when all the three bulbs are glowing<\/p>\n<p>Now when bulb B<sub>2<\/sub> gets fused, the equivalent resistance of parallel combination<br \/>\nof B<sub>1<\/sub> and B<sub>3<\/sub> is<\/p>\n<p>Since resistance of each arm is same and p.d. is also same, current divides them equally. So lA current will pass through each bulb Bl and By<br \/>\nTherefore, ammeter A<sub>1<\/sub> and A<sub>3<\/sub> reads l Acurrent while A<sub>2<\/sub> will read zero and ammeter A read 2 A current.<\/p>\n<p>(iii) In parallel, total power consumed<\/p>\n<p>P<sub>eq<\/sub> =P<sub>1<\/sub> + P<sub>2 <\/sub>+ P<sub>3<\/sub><\/p>\n<p>So, when all the three bulbs glow together<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Long_Answer_Type_Questions\"><\/span>Long Answer Type Questions<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>8. Three incandescent bulbs of 100 W each are connected in series in an electric circuit. In another circuit, another set of three bulbs of the same wattage are connected in parallel to the same source.<\/strong><\/p>\n<p><strong>(\u0430) Will the bulb in the two circuits glow with the same brightness? Justify your answer.<\/strong><strong>(b) Now let one bulb in both the circuits get fused. Will the rest of the bulbs continue to glow in each circuit? Give reason.<\/strong><\/p>\n<p><strong>Answer.<\/strong> For three identical bulbs,<\/p>\n<p>In series, Rs = 3R<\/p>\n<p>In parallel, Rp = R\/3<\/p>\n<p>(a) The bulbs in the two circuits will not glow equally bright as the current through them is not the same.<\/p>\n<p>(b) As one bulb fuses, the other bulbs in the series circuit will not glow because the circuit becomes an open circuit. While the rest of bulbs in parallel circuit will continue to glow without getting because in parallel combination, current gets additional paths to flow.<\/p>\n<p><strong>9.Find out the following in the electric circuit given in figure:<\/strong><\/p>\n<p>(a) Effective resistance of two 8 \u2126 resistors in the combination,<\/p>\n<p>(b) Current flowing through 4 \u2126 resistor,<\/p>\n<p>(c) Potential difference across 4 \u2126 resistance,<\/p>\n<p>(d) Power dissipated in 4 \u2126 resistor, and<\/p>\n<p>(e) Difference in ammeter readings, if any.<\/p>\n<p><strong>Answer. <\/strong>(a) Effective resistance, the two 8 \u2126 resistors in parallel<\/p>\n<h4><span class=\"ez-toc-section\" id=\"More_Resources_for_Class_10\"><\/span>More Resources for Class 10<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-10\/\"><strong>NCERT Solutions for Class 10<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-10\/maths\/\"><strong>NCERT Solutions for Class 10 Maths<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-10\/science\/\"><strong>NCERT Solutions for Class 10 Science<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-10\/social-science\/\"><strong>NCERT Solutions for Class 10 Social Science<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-10\/english\/\"><strong>NCERT Solutions for Class 10 English<\/strong><\/a><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_FAQs\"><\/span>Frequently Asked Questions (FAQs)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"List_the_subjects_covered_in_NCERT_Exemplar_Solutions_for_Class_10_Sciences_Chapter_12_Electricity\"><\/span>List the subjects covered in NCERT Exemplar Solutions for Class 10 Science&#039;s Chapter 12 Electricity.<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tThe following are the subjects covered in NCERT Exemplar Solutions for Class 10 Science Chapter 12 Electricity: Ohms law is the first law of thermodynamics. Resistance and Resistivity Factors that influence a conductors resistance Resistor combinations in parallel and series, and their applications Electric Currents Heating Effect and Its Applications Electricity is number six. P, V, I, and Rs interrelationship\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"Should_really_students_download_the_NCERT_Answers_for_10th_class_Science_Chapter_12_PDF_from_the_NCERT_webpage\"><\/span>Should really students download the NCERT Answers for 10th class Science Chapter 12 PDF from the NCERT webpage?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tAll of the problems in the textbook are answered in the NCERT Exemplar Solutions for Class 10 Science Chapter 12 PDF, which includes illustrations and answers. Every question is answered with the understanding capacities of the pupils in mind. To help pupils face exams without anxiety, the answers created fully follow the CBSE syllabus and CBSE Term II test format. It also enhances time management abilities, which are critical for exam success.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"List the subjects covered in NCERT Exemplar Solutions for Class 10 Science's Chapter 12 Electricity.\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"The following are the subjects covered in NCERT Exemplar Solutions for Class 10 Science Chapter 12 Electricity: Ohms law is the first law of thermodynamics. Resistance and Resistivity Factors that influence a conductors resistance Resistor combinations in parallel and series, and their applications Electric Currents Heating Effect and Its Applications Electricity is number six. P, V, I, and Rs interrelationship\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Should really students download the NCERT Answers for 10th class Science Chapter 12 PDF from the NCERT webpage?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"All of the problems in the textbook are answered in the NCERT Exemplar Solutions for Class 10 Science Chapter 12 PDF, which includes illustrations and answers. Every question is answered with the understanding capacities of the pupils in mind. To help pupils face exams without anxiety, the answers created fully follow the CBSE syllabus and CBSE Term II test format. It also enhances time management abilities, which are critical for exam success.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>Download NCERT Exemplar Solutions for Class 10 Science Chapter 12 Electricity gives solutions and explanations to all of the textbook&#8217;s [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"NCERT Exemplar Solutions for Class 10","_yoast_wpseo_title":"NCERT Exemplar Solutions for Class 10 Science Chapter 12","_yoast_wpseo_metadesc":"Free PDF download of NCERT Exemplar Solutions for Class 10 Science Chapter 12 Electricity solved by expert Science teachers","custom_permalink":"study-materials\/ncert-exemplar-solutions\/class-10\/science\/chapter-12-electricity\/"},"categories":[151,105,157,21],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This 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