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EEE :: FET(Field Effect Transistors)

  1. When either L or C is increased, the resonant frequency of LC circuit ___________

  2. A.

     Remains the same

    B.

     Increases

    C.

     Decreases

    D.

     Insufficient data


  3. If L/C ratio of a parallel LC circuit is increased, the Q of the circuit ___________

  4. A.

     Is decreased

    B.

     Is increased

    C.

     Remains the same

    D.

     None of the above


  5. If the resistance of a tuned circuit is increased, the Q of the circuit ___________

  6. A.

     Is increased

    B.

     Is decreased

    C.

     Remains the same

    D.

     None of the above


  7. Most of the majority carriers from the emitter ___________

  8. A.

     recombine in the base

    B.

     recombine in the emitter

    C.

     pass through the base region to the collector

    D.

     none of the above


  9. A transistor is connected in CB mode. If it is not connected in CE mode with same bias voltages, the values of IE, IB and IC will ___________

  10. A.

     remain the same

    B.

     increase

    C.

     decrease

    D.

     none of the above


  11. When the temperature changes, the operating point is shifted due to .

  12. A.

     Change in ICBO

    B.

     Change in VCC

    C.

     Change in the values of circuit resistance

    D.

     None of the above


  13. BC 147 transistor indicates that it is made of ___________

  14. A.

     germanium

    B.

     silicon

    C.

     carbon

    D.

     none of the above


  15. Double tuned circuits are used in ___________ stages of a radio receiver

  16. A.

     IF

    B.

     Audio

    C.

     Output

    D.

     None of the above


  17. In a tansistor, IC = 100 mA and IE = 100.2 mA. The value of ß is ___________

  18. A.

     100

    B.

     50

    C.

     about 1

    D.

     200


  19. If the value of a is 0.9, then value of ß is ___________

  20. A.

     9

    B.

     0.9

    C.

     900

    D.

     90