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EEE :: Single Stage Transistor

  1. A CE amplifier is also called ___________ circuit

  2. A.

     Grounded emitter

    B.

     Grounded base

    C.

     Grounded collector

    D.

     None of the above


  3. A transistor amplifier has high output impedance because ___________

  4. A.

     Emitter is heavily doped

    B.

     Collector has reverse bias

    C.

     Collector is wider than emitter or base

    D.

     None of the above


  5. An amplifier has a power gain of 100. Its db gain is ___________

  6. A.

     10 db

    B.

     20 db

    C.

     40 db

    D.

     None of the above


  7. In a single stage transistor amplifier, RC and RL represent collector resistance and load resistance respectively. The transistor sees a d.c. load of ___________

  8. A.

     RC + RL

    B.

     RC || RL

    C.

     RL

    D.

     RC


  9. A single stage transistor amplifier with collector load RC and emitter resistance RE has a d.c. load of ___________

  10. A.

     RC

    B.

     RC || RE

    C.

     RC - RE

    D.

     RC + RE


  11. The d.c. load of a transistor amplifier is generally ___________ that of a a.c. load

  12. A.

     The same as

    B.

     Less than

    C.

     More than

    D.

     None of the above


  13. If a transistor amplifier feeds a load of low resistance (e.g. speaker), then voltage gain will be ___________

  14. A.

     High

    B.

     Very high

    C.

     Moderate

    D.

     Low


  15. If RC and RL represent the collector resistance and load resistance respectively in a single stage transistor amplifier, then a.c. load is

  16. A.

     RL + RC

    B.

     RC || RL

    C.

     RL - RC

    D.

     RC


  17. It is generally desired that a transistor should have ___________ input impedance

  18. A.

     Low

    B.

     Very low

    C.

     High

    D.

     Very high


  19. For highest power gain, one would use ___________ configuration

  20. A.

     CC

    B.

     CB

    C.

     CE

    D.

     none of the above