Electricity And Magnetism MCQ Practice Bits

13 The magnetic force on a current carrying wire placed in uniform magnetic field if the wire is oriented perpendicular to magnetic field, is ...... 1. 1.0 2. ILB 3. 2ILB 4. ILB/2

12 Which of the following converts mechanical energy into electrical energy 1. motor 2. battery 3. generator 4. switch

11 Which of the following converts electrical energy into mechanical energy 1. motor 2. battery 3. generator 4. switch

10 The current in the wire depends 1. only on the potential difference applied 2. only on the resistance of the wire 3. on both of them 4. none of them

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09 Joule/coloumb is the same as 1. 1 - watt 2. 1 - volt 3. 1 - ampere 4. 1 - ohm

08 A charge is moved from a point A to a point B. The work done to move unit charge during this process is called 1. potential at A 2. potential at B 3. potential difference between A and B 4. current from A to B

07 A device which produces electric current, is: 1. generator 2. ammeter 3. galvanometer 4. voltmeter

06 An AC generator works on the principle of 1. heating effect of electric current 2. magnetic effect of electric current 3. electromagnetic induction 4. sounding effect of electric current

05 The scientist who invented electric generator, is: 1. coulomb 2. rutherford 3. oersted 4. Michael Faraday

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