Related Mcqs:

1. An uncharged conductor is placed near a charged conductor, then_____________?

   A. the uncharged conductor gets charged by conduction
   B. the uncharged conductor gets charged by induction and then attracted towards the charging body
   C. the uncharged conductor is attracted first and then charged by induction
   D. it remains as such

2. The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as____________?

   A. pholoelectric effect
   B. chemical effect
   C. magnetic effect
   D. induction

3. The electric field at a point situated at a distance d from straight charged conductor is____________?

   A. proportional to d
   B. inversely proportional to d
   C. inversely proportional to d
   D. none of the above

4. If metallic conductor is charged negatively then its weight______________?

   A. Remains same
   B. First increases then decreases
   C. Decreases then increases
   D. Increases for a while

5. Two oppositely charged balls A and B attract third conducting ball C when placed near them turn by turn. Then ball C must be______________?

   A. positively charged
   B. electrically neutral
   C. negatively charged
   D. positively and negatively charged

6. A single core cable used on 33000 V has conductor diameter 10 mm and the internal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is____________?

   A. 62 x 105 V/m
   B. 72 x 105 V/m
   C. 82 x 105 V/m
   D. 92 x 105 V/m

7. Selenium becomes a conductor in light so it behaves like____________?

   A. Semiconductor
   B. Photodiode
   C. Light emitting diode
   D. Capacitor

8. The lines of force due to charged particles are_________?

   A. always straight
   B. always curved
   C. sometimes curved
   D. none of the above

9. The capacitance C is charged through a resistance R. The time constant of the charging circuit is given by__________?

   A. CIR
   B. 1/RC
   C. RC
   D. RIC

10. In a charged capacitor the energy resides in________________?

    A. magnetic hield
    B. electric field
    C. nuclear field
    D. gravitational field