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Semiconductor Diode Multiple - Section-1
  1. A zener diode has ___________ breakdown voltage

    2. A.

     undefined
    B.

     sharp
    C.

     zero
    D.

     none of the above

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  2. A zener diode is always ___________ connected.

    3. A.

     reverse
    B.

     forward
    C.

     either reverse or forward
    D.

     none of the above

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  3. A crystal diode is a ___________ device

    4. A.

     non-linear
    B.

     bilateral
    C.

     linear
    D.

     none of the above

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  4. A crystal diode has

    5. A.

     one pn junction
    B.

     two pn junctions
    C.

     three pn junctions
    D.

     none of the above

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  5. A 10 V power supply would use ___________ as filter capacitor.

    6. A.

     paper capacitor
    B.

     mica capacitor
    C.

     electrolytic capacitor
    D.

     air capacitor

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  6. If the a.c. input to a half-wave rectifier is an r.m.s value of 400/√2 volts, then diode PIV rating is ___________

    7. A.

     400/√2 V
    B.

     400 V
    C.

     400 x √2 V
    D.

     none of the above

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  7. When a crystal diode is used as a rectifier, the most important consideration is ___________

    8. A.

     forward characteristic
    B.

     doping level
    C.

     reverse characteristic
    D.

     PIC rating

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  8. The PIV rating of each diode in a bridge rectifier is ___________ that of the equivalent centre-tap rectifier

    9. A.

     one-half
    B.

     the same as
    C.

     twice
    D.

     four times

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  9. When the graph between current through and voltage across a device is a straight line, the device is referred to as ___________

    10. A.

     linear
    B.

     active
    C.

     nonlinear
    D.

     passive

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  10. The knee voltage of a crystal diode is approximately equal to ___________

    11. A.

     applied voltage
    B.

     breakdown voltage
    C.

     forward voltage
    D.

     barrier potential

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