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Discussion :: Measurements and Instrumentation

  1. One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land?

    2. A.

     1
    B.

     0.84
    C.

     0.73
    D.

     0.65

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    Answer : Option B

    Explanation :

    Explanation Not Provided

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