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Discussion :: Measurements and Instrumentation

  1. A sinusoidal ac voltage of amplitude 100 V is applied to a rectifying device which offers 10 Ω resistance in forward direction and infinite resistance in reverse direction. The reading on hot wire ammeter will be

    2. A.
    10 A
    B.
    5 A
    C.
    3.185 A
    D.
    1.414 A

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    Answer : Option B

    Explanation :

    Hot wire ammeter indicates rms value

    .

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