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JEE Main & Advanced Physics Alternating Current / प्रत्यावर्ती धारा Question Bank Graphical Questions

  • question_answer
    The variation of the instantaneous current (I) and the instantaneous emf (E) in a circuit is as shown in fig. Which of the following statements is correct

    A)            The voltage lags behind the current by p / 2

    B)            The voltage leads the current by p / 2

    C)            The voltage and the current are in phase

    D)            The voltage leads the current by p

    Correct Answer: B

    Solution :

               At t = 0, phase of the voltage is zero, while phase of the current is \[-\frac{\pi }{2}\] i.e., voltage leads by \[\frac{\pi }{2}\]


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