{"id":21310,"date":"2024-02-29T16:28:28","date_gmt":"2024-02-29T10:58:28","guid":{"rendered":"https:\/\/icsesolutions.com\/?p=21310"},"modified":"2024-03-01T09:17:14","modified_gmt":"2024-03-01T03:47:14","slug":"selina-concise-physics-class-8-icse-solutions-electricity","status":"publish","type":"post","link":"https:\/\/icsesolutions.com\/selina-concise-physics-class-8-icse-solutions-electricity\/","title":{"rendered":"Selina Concise Physics Class 8 ICSE Solutions – Electricity"},"content":{"rendered":"
ICSE Solutions \u00a0<\/a>Selina ICSE Solutions \u00a0<\/a>ML Aggarwal Solutions<\/a><\/p>\n ICSESolutions.com provides step by step solutions for Selina Concise ICSE Solutions for Class 8 Physics Chapter 8 Electricity. You can download the Selina Concise Physics ICSE Solutions for Class 8 with Free PDF download option. Selina Publishers Concise Physics for Class 8 ICSE Solutions all questions are solved and explained by expert teachers as per ICSE board guidelines.<\/p>\n Selina Class 8 Physics ICSE Solutions<\/a>Chemistry<\/a>Biology<\/a>Maths<\/a>Geography<\/a>History & Civics<\/a><\/p>\n Test yourself<\/strong><\/span><\/p>\n A. Objective Questions<\/span><\/p>\n 1. Write true or false for each statement:<\/strong><\/p>\n (a)<\/strong> A fuse wire has a high melting point. (b)<\/strong> Flow of protons constitutes electric current. (c)<\/strong> Silver is an insulator of electricity. (d)<\/strong> S.I. unit and commercial unit of electrical energy are same. (e)<\/strong> Overloading of electric current in circuits can lead to short circuiting. (f)<\/strong> Our body can pass electricity through it. (g)<\/strong> All metals are insulators of electricity. (h)<\/strong> The earth wire protects us from an electric shock. (i)<\/strong> A switch should not be touched with wet hands. (j)<\/strong> AH electrical appliances in a household circuit work at the same voltage. (k)<\/strong> In a cable, the green wire is the live wire. (l)<\/strong> A fuse is connected to the live wire. (m)<\/strong> A switch is connected to the neutral wire. 2. Fill in the blanks<\/strong><\/p>\n (a)<\/strong> The unit in which we pay the cost of electricity is kWh.<\/strong> 3. Match the following 4. Select the correct alternative<\/strong><\/p>\n (a)<\/strong> All wires used in electric circuits should be covered with<\/p>\n (b)<\/strong> Electric work done per unit time is<\/p>\n (c)<\/strong> One kilowatt \u00a1s equal to<\/p>\n (d)<\/strong> Fuse wire is an alloy of<\/p>\n (e)<\/strong> A fuse wire should have<\/p>\n (f)<\/strong> When switch of an electric appliance is put off, it disconnects<\/p>\n (g)<\/strong> The purpose of an electric meter in a house is<\/p>\n (h)<\/strong> If out of the two lighted bulbs in a room, one bulb suddenly fuses, then<\/p>\n Selina Concise Physics Class 8 ICSE Solutions – Electricity ICSE Solutions \u00a0Selina ICSE Solutions \u00a0ML Aggarwal Solutions ICSESolutions.com provides step by step solutions for Selina Concise ICSE Solutions for Class 8 Physics Chapter 8 Electricity. You can download the Selina Concise Physics ICSE Solutions for Class 8 with Free PDF download option. Selina Publishers Concise …<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[3034],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts\/21310"}],"collection":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/comments?post=21310"}],"version-history":[{"count":1,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts\/21310\/revisions"}],"predecessor-version":[{"id":168017,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts\/21310\/revisions\/168017"}],"wp:attachment":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/media?parent=21310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/categories?post=21310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/tags?post=21310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Selina Concise ICSE Solutions for Class 8 Physics Chapter 8\u00a0 Electricity
\n<\/strong><\/span><\/h2>\n\n
\nPotential difference V =\u00a0Work done (W) \/ charge moved (Q)
\nOr W = QV but charge = it
\nHence, W = VIt or Electrical energy = VIt<\/li>\n
\nP = W\/t = VIt\/t = VI
\nPower is measured in watt or J\u00a0S-1<\/sup>
\n1 Watt = 1 Volt \u00d7 1 Ampere<\/li>\n
\nS.I. unit of current is Ampere (A).
\nS.I. unit of P.D. is volt.
\nS.I. unit of electrical energy is Joule (J) and of power is watt (W)
\n1 kWh-3600000J = 3.6 x\u00a0106<\/sup> J<\/li>\n
\nNeutral\u2014Black or light blue
\nEarth wire \u2014 Green or yellow<\/li>\n
\nCOMES IN CONTACT WITH THE NEUTRAL WIRE, this result in SHORT CIRCUITING<\/li>\n
\n(i) High resistance
\n(ii) Low melting point.
\nThese days miniature circuit breakers (MCB) are used. It is AUTOMATIC breaker, when current flowing excess.<\/li>\n
\nAnswer.<\/strong> False.<\/p>\n
\nAnswer.<\/strong> False.<\/p>\n
\nAnswer.<\/strong> False.<\/p>\n
\nAnswer.<\/strong> False.<\/p>\n
\nAnswer.<\/strong> True.<\/p>\n
\nAnswer.<\/strong> True.<\/p>\n
\nAnswer.<\/strong> False.<\/p>\n
\nAnswer.<\/strong> True.<\/p>\n
\nAnswer.<\/strong> True.<\/p>\n
\nAnswer.<\/strong> True.<\/p>\n
\nAnswer.<\/strong> False.<\/p>\n
\nAnswer.<\/strong> True.<\/p>\n
\nAnswer.<\/strong> False.<\/p>\n
\n(b)<\/strong> The electrical energy consumed in a house is measured by kWh meter.<\/strong>
\n(c)<\/strong> In a household electrical circuit, the appliance are connected in parallel<\/strong> with the mains.
\n(d)<\/strong> A switch is connected to the live<\/strong> wire.
\n(e)<\/strong> The red colour insulated wire in a cable is the live<\/strong> wire.
\n(f)<\/strong> One kilowatt hour is equal to 3.6 x 106<\/strong> joule.
\n(g)<\/strong> A fuse wire should have low melting point.<\/strong><\/p>\n
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\n<\/strong>
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