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JEE Main & Advanced Physics Alternating Current / प्रत्यावर्ती धारा Question Bank Alternating Current, Voltage and Power

  • question_answer
    The frequency of ac mains in India is [NCERT 1974; MP PMT/PET 1988; RPMT 1997; RPET 2000]

    A)            30 c/s or Hz                           

    B)            50 c/s or Hz

    C)            60 c/s or Hz                           

    D)            120 c/s or Hz

    Correct Answer: B

    Solution :


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