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Railways General Science & Technology Alternating Current / प्रत्यावर्ती धारा Sample Paper Alternating Current and Electromagnetic Induction Sample Test Paper-10

  • question_answer
    The voltage of domestic AC is 220 volt. What does this represent

    A)  Mean voltage   

    B)  Peak voltage

    C)  Root mean voltage        

    D)  Root mean square voltage

    Correct Answer: D

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