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

  • question_answer
    The r.m.s. voltage of domestic electricity supply is 220 volt . Electrical appliances should be designed to withstand an instantaneous voltage of

    A)            220 V                                       

    B)            310 V

    C)            330 V                                       

    D)            440 V

    Correct Answer: B

    Solution :

               Peak voltage \[=\sqrt{2}\times 220=311\ V\]


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