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EEE :: Single Stage Transistor

  1. In a CE amplifier, the phase difference between voltage across collector load RC and signal voltage is ___________

  2. A.

     180°

    B.

     270°

    C.

     90°

    D.

     0°

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  3. In the d.c. equivalent circuit of a transistor amplifier, the capacitors are considered ___________

  4. A.

     Short

    B.

     Open

    C.

     Partially short

    D.

     None of the above

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  5. In the a.c. equivalent circuit of a transistor amplifier, the capacitors are considered ___________

  6. A.

     Short

    B.

     Open

    C.

     Partially open

    D.

     None of the above

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  7. The purpose of d.c. conditions in a transistor is to ___________

  8. A.

     Reverse bias the emitter

    B.

     Forward bias the collector

    C.

     Set up operating point

    D.

     None of the above

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  9. The output power of a transistor amplifier is more than the input power because the additional power is supplied by ___________

  10. A.

     Transistor

    B.

     Biasing circuit

    C.

     Collector supply VCC

    D.

     None of the above

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  11. The point of intersection of d.c. and a.c. load lines is called ___________

  12. A.

     Saturation point

    B.

     Cut off point

    C.

     Operating point

    D.

     None of the above

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  13. The radio wave picked up by the receiving antenna is amplified about times to have reasonable sound output

  14. A.

     1000

    B.

     A million

    C.

     100

    D.

     10000

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  15. If the power and current gains of a transistor amplifier are 16500 and 100 respectively, then voltage gain is

  16. A.

     165

    B.

     165 x 104

    C.

     100

    D.

     None of the above

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  17. If the collector supply is 10V, then collector cut off voltage under d.c. conditions is ___________

  18. A.

     20 V

    B.

     5 V

    C.

     2 V

    D.

     10 V

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  19. In order to get more voltage gain from a transistor amplifier, the transistor used should have ___________

  20. A.

     Thin base

    B.

     Thin collector

    C.

     Wide emitter

    D.

     None of the above

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