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Discussion :: Measurements and Instrumentation

  1. In a digital measuring device the input electrical signal is in the frequency range of dc to ac (50) Hz. It must be sampled at a rate of

    2. A.
    f times/sec
    B.
    0.5 f times/sec
    C.
    0.25 f times/sec
    D.
    2 f times/sec

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    Answer : Option D

    Explanation :

    Sampling frequency must be twice the input frequency.

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