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Discussion :: Communication Systems

  1. In colour TV receiver, varactor diode is used for

    2. A.
    detection
    B.
    rectification
    C.
    tuning
    D.
    both (a) and (b)

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    Answer : Option C

    Explanation :

    In varactor diode the applied reverse bias controls the width and therefore capacitance of depletion layer.

    This capacitance is used for tuning.

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