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Discussion :: Microwave Communication

  1. The reverse voltage applied to a varactor diode

    2. A.
    is less than avalanche breakdown voltage
    B.
    is more than avalanche breakdown voltage
    C.
    may be more or less than a avalanche breakdown voltage
    D.
    is very high as compared to avalanche breakdown voltage

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    Answer : Option A

    Explanation :

    The action of varactor diode is due to the capacitance of depletion layer. The thickness of depletion layer depends on the reverse bias which should not cause breakdown.

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