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Discussion :: Communication Systems

  1. Consider the following statements as regards noise

    1. If Gaussian noise is applied at input of a rectifier, the output is not gaussian
    2. The noise encountered on a telephone line consists of short, pulse type disturbances whose amplitude distribution is not Gaussian
    3. Shot noise results from random emission of electrons from a cathode
    4. Shot noise results from phenomenon associated with the flow of current across semi conductor junctions
    Which of the above are correct?

    2. A.
    1, 2, 3, only
    B.
    1, 2, 4 only
    C.
    1, 2, 3, 4
    D.
    2, 3 only

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    Answer : Option C

    Explanation :

    No answer description available for this question.

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