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Semiconductor Diode Multiple - Section-1
  1. If the doping level of a crystal diode is increased, the breakdown voltage___________

    2. A.

     remains the same
    B.

     is increased
    C.

     is decreased
    D.

     none of the above

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  2. A crystal diode has forward resistance of the order of ___________

    3. A.

     kΩ
    B.

     Ω
    C.

     MΩ
    D.

     none of the above

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  3. The reverse current in a diode is of the order of ___________

    4. A.

     kA
    B.

     mA
    C.

     μA
    D.

     A

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  4. Mains a.c. power is converrted into d.c. power for ___________

    5. A.

     lighting purposes
    B.

     heaters
    C.

     using in electronic equipment
    D.

     none of the above

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  5. There is a need of transformer for ___________

    6. A.

     half-wave rectifier
    B.

     centre-tap full-wave rectifier
    C.

     bridge full-wave rectifier
    D.

     none of the above

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  6. A zener diode is ___________ device

    7. A.

     a non-linear
    B.

     a linear
    C.

     an amplifying
    D.

     none of the above

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  7. The leakage current in a crystal diode is due to ___________

    8. A.

     minority carriers
    B.

     majority carriers
    C.

     junction capacitance
    D.

     none of the above

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  8. A zener diode utilizes ___________ characteristics for its operation.

    9. A.

     forward
    B.

     reverse
    C.

     both forward and reverse
    D.

     none of the above

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  9. ___________ rectifier has the lowest forward resistance

    10. A.

     solid state
    B.

     vacuum tube
    C.

     gas tube
    D.

     none of the above

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  10. The doping level in a zener diode is ___________ that of a crystal diode

    11. A.

     the same as
    B.

     less than
    C.

     more than
    D.

     none of the above

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