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  1. A dynamometer wattmeter can be used for

    2. A.

     Only Direct Current
    B.

     Only Active Current
    C.

     Both A & B
    D.

     None of the above

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    Answer : Option C

    Explanation :

    Dynamometer type wattmeter is used for the measurement of A.C. as well as D.C. power. It consists of a fixed coil forming the current coil whereas the moving coil forms the potential coil.

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