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Discussion :: Measurements and Instrumentation

  1. The resistance of a dc galvanometer is 20 Ω. A current of 10 mA causes full scale deflection. To convert it into 0-300 V voltmeter, we have to use a series resistance of

    2. A.
    30000 Ω
    B.
    29980 Ω
    C.
    6000 Ω
    D.
    15 Ω

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    Answer : Option B

    Explanation :

    .

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