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EEE :: Electrostatics

  1. One volt is the same as

  2. A.

     one joule/coulomb

    B.

     one coulomb/joule

    C.

     one coulomb

    D.

     one joule


  3. _______ field is associated with the capacitor.

  4. A.

     Electric

    B.

     Magnetic

    C.

     Both (A) and (B)

    D.

     None of the above


  5. Acharge which when placed in vacuum from an equal and similar charge repels with a force of 9 x 10 N, is known as

  6. A.

     milli-coulomb

    B.

     micro-coulomb

    C.

     pico-coulomb

    D.

     coulomb


  7. A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

  8. A.

     0.024 F

    B.

     0.12 F

    C.

     0.6 F

    D.

     0.8 F


  9. In a capacitive circuit

  10. A.

     a steady value of applied voltage causes discharge

    B.

     an increase in applied voltage makes a capacitor charge

    C.

     decrease in applied voltage makes a capacitor charge

    D.

     none of the above


  11. Two infinite parallel plates 10 mm apart have maintained between them a potential difference of 100 V. The acceleration of an electron placed between them is

  12. A.

     0.56 x 1015 m/s2

    B.

     1.5 x 1015 m/s2

    C.

     1.6 x 1015 m/s2

    D.

     1.76 x 1015 m/s2


  13. What is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ?

  14. A.

     50 pF

    B.

     100 pF

    C.

     150 pF

    D.

     200 pF


  15. A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ?

  16. A.

     Paper capacitor

    B.

     Ceramic capacitor

    C.

     Electrolytic capacitor

    D.

     Any-of the above


  17. Air capacitors are generally available in the range

  18. A.

     10 to 400 pF

    B.

     1 to 20 pF

    C.

     100 to 900 pF

    D.

     20 to 100 pF


  19. An electrolytic capacitor is generally made to provide

  20. A.

     low capacitance

    B.

     fixed capacitance

    C.

     variable capacitance

    D.

     large value of capacitance