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EEE :: Electrostatics

  1. The bridge used for the measurement of the value of the capacitance is

  2. A.

     Wien’s bridge

    B.

     Wheatstone bridge

    C.

     Schering bridge

    D.

     Hay’s bridge


  3. is that property of a capacitor which delays any change of voltage across it.

  4. A.

     Inductance

    B.

     Capacitance

    C.

     Potential gradient

    D.

     None of the above


  5. Which of the following capacitors preferred for high frequency circuits ?

  6. A.

     Air capacitor

    B.

     Electrolytic capacitor

    C.

     Mica capacitor

    D.

     none of the above


  7. The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as

  8. A.

     Photoelectric effect

    B.

     Chemical effect

    C.

     Magnetic effect

    D.

     Induction


  9. The lines of force due to charged particles are

  10. A.

     always straight

    B.

     always curved

    C.

     sometimes curved

    D.

     none of the above


  11. While testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is

  12. A.

     Short-circuited

    B.

     Open circuited

    C.

     Alright

    D.

     Leaky


  13. A capacitance is a circuit component that opposes the change in circuit

  14. A.

     current

    B.

     voltage

    C.

     impedance

    D.

     none of the above


  15. In order to remove static electricity from machinery

  16. A.

     construct insulated cabins

    B.

     insulate the machinery

    C.

     ground the framework

    D.

     humidify the surroundings


  17. Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ?

  18. A.

     50

    B.

     100

    C.

     150

    D.

     200


  19. Which of the following material has least value of dielectric constant ?

  20. A.

     Ceramics

    B.

     Oil

    C.

     Glass

    D.

     Paper