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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


  3. The output impedance of a transistor is ___________

  4. A.

     high

    B.

     zero

    C.

     low

    D.

     very low


  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


  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


  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


  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


  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


  15. The operating point is also called the ___________

  16. A.

     Cut off point

    B.

     Quiescent point

    C.

     Saturation point

    D.

     None of the above


  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


  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