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EEE :: FET(Field Effect Transistors)

  1. The value of a of a transistor is ___________

  2. A.

     more than 1

    B.

     less than 1

    C.

     1

    D.

     none of the above

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  3. The output impedance of a transistor is ___________

  4. A.

     high

    B.

     zero

    C.

     low

    D.

     very low

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  5. The most commonly used semiconductor in the manufacture of a transistor is ___________

  6. A.

     germanium

    B.

     silicon

    C.

     carbon

    D.

     none of the above

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  7. A heat sink is generally used with a transistor to ___________

  8. A.

     increase the forward current

    B.

     decrease the forward current

    C.

     compensate for excessive doping

    D.

     prevent excessive temperature rise

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  9. For germanium transistor amplifier, VCE should ___________ for faithful amplification

  10. A.

     Be zero

    B.

     Be 0.2 V

    C.

     Not fall below 0.7 V

    D.

     None of the above

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  11. In a base resistor method, if the value of ß changes by 50, then collector current will change by a factor

  12. A.

     25

    B.

     50

    C.

     100

    D.

     200

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  13. For good stabilsation in voltage divider bias, the current I1 flowing through R1 and R2 should be equal to or greater than

  14. A.

     10 IB

    B.

     3 IB

    C.

     2 IB

    D.

     4 IB

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  15. The operating point is also called the ___________

  16. A.

     Cut off point

    B.

     Quiescent point

    C.

     Saturation point

    D.

     None of the above

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  17. In the design of a biasing circuit, the value of collector load RC is determined by ___________

  18. A.

     VCE consideration

    B.

     VBE consideration

    C.

     IB consideration

    D.

     None of the above

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  19. The operating point ___________ on the a.c. load line

  20. A.

     Also line

    B.

     Does not lie

    C.

     May or may not lie

    D.

     Data insufficient

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