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Railways NTPC (Technical Ability) Electrical Measurement and Instrumentation Question Bank Electrical Measurement and Instrumentation

  • question_answer
    In AC bridges, the Wagner earth devices are used to

    A)  Remove all the earth capacitances from the bridge circuit

    B)  Remove harmonics

    C)  Reduce error caused by stray electric field

    D)  All of the above

    Correct Answer: D

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