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Discussion :: Measurements and Instrumentation

  1. The power input and output in a device are 3650 W and 3385 W with each reading in doubt by ± 10 W. The percentage uncertainty in losses is

    2. A.
    ± 7.55%
    B.
    ± 3.77%
    C.
    ± 11.32%
    D.
    ± 15.09%

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    Workspace

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    Answer : Option A

    Explanation :

    Losses = 3650 - 3385 = 265 W uncertainty = ± 20 W.

    .

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