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hhh.pdf - CHAPTER : 1 - Electricity Daily Home Assignment...

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1.Charge on one electron is: (a)–9.1×10–19C (c)+9.1×10–19C(b)–1.6×10–19C (d)+1.6×10–19 C 2.The current flow in conductor is due to: (a)free electrons(c) ions(b) protons (d)neutrons 3.A current of 1.0 ampere is flowing in a conductor. The number of electrons passing per second will be: (a) 6.25(c)6.25×10–18 (b) 6.25×10 –18 (d) 1 4.The amount of electric charge on one proton is: (a)1.0×10–19C(c)1.6×10+19 C(b) 6.25×10+19 C (d) 1.6×10–19 C 5.Silicon is a: (a)conductor(c)semi-conductor(b) insulator (d)none of these 6.The unit of electric charge is: (a)joule(c) volt (b)coulomb (d) ampere 7.The unit of electric current is: (a)coulomb(c) ampere(b) joule
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Unformatted text preview:(d) calorie 8. If ' I ' is the current through a wire and ' e' is the charge of an electron, then the number of electrons in ' t ' seconds will be given by: (a) (b) Ite(c) Ie t e It (d) It e 9. Which value of charge is not possible and why? (a) 1.6 ×10 −18 C (c) 3.2 × 10 - 21C (b)3.2 ×10 −17 C (d) 1.6 × 10-22 C10.A flow of 10 7 electrons per second in a conducting wire constitutes a current of (a) 1.6× 10-12 A (c) 1.6 × 10-26 A (b) 1.6 × 10 26 A(d) 1.6 × 10 12 ACHAPTER : 1 - Electricity Daily Home Assignment DPP-01