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

  • question_answer
    Half wave rectifier type AC meters are used as voltmeter They cannot be used as ammeters because

    A)  pointer would oscillate with AC       

    B)  AC current would be too small to read         

    C)  AC current would be excessive               

    D)  AC is changed to DC    

    Correct Answer: A

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