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Regulated DC Power Supply - section-1
  1. A Zener voltage regulator will cease to act as a voltage regulator if Zener current becomes ___________

    2. A.

     Less than load current
    B.

     Zero
    C.

     More than load current
    D.

     None of the above

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  2. If the load resistance decreases in a Zener regulator, then Zener current ___________

    3. A.

     Decreases
    B.

     Stays the same
    C.

     Increases
    D.

     None of the above

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  3. A Zener regulator ___________ in the power supply

    4. A.

     Increases the ripple
    B.

     Decreases the ripple
    C.

     Neither increases nor decreases the ripple
    D.

     Data insufficient

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  4. Zener diode are generally made of ___________

    5. A.

     Germanium
    B.

     Silicon
    C.

     Carbon
    D.

     None of the above

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  5. In an unregulated power supply, if load current increases, the output voltage ___________

    6. A.

     Remains the same
    B.

     Decreases
    C.

     Increases
    D.

     None of the above

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  6. If the load current drawn by unregulated power supply increases, the d.c. output voltage ___________

    7. A.

     Increases
    B.

     Decreases
    C.

     Stays the same
    D.

     None of the above

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  7. A 30 V Zener will have depletion layer width ___________ that of 10 V Zener

    8. A.

     More than
    B.

     Less than
    C.

     Equal to
    D.

     None of the above

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  8. A Zener voltage regulator is used for ___________ load currents

    9. A.

     High
    B.

     Very high
    C.

     Moderate
    D.

     Small

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  9. A Zener diode that has very narrow depletion layer will breakdown by mechanism

    10. A.

     Avalanche
    B.

     Zener
    C.

     Both avalanche and Zener
    D.

     None of the above

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  10. In a Zener voltage regulator, the changes in load current produce changes in ___________

    11. A.

     Zener current
    B.

     Zener voltage
    C.

     Zener voltage as well as Zener current
    D.

     None of the above

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