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JEE Main & Advanced Physics Alternating Current / प्रत्यावर्ती धारा Question Bank Self Evaluation Test - Alternating Current

  • question_answer
    In the circuits and switches\[{{S}_{1}}\]and\[{{S}_{2}}\]are S closed at t=0 and are kept closed for a long time The variation of current in the two circuits for\[t\ge 0\]are roughly shown by figure (figures are schematic and not drawn to scale):

    A)

    B)

    C)

    D)

    Correct Answer: C

    Solution :

    [c] For capacitor circuit, \[i={{i}_{0}}{{e}^{-t/RC}}\] For inductor circuit, \[i={{i}_{0}}\left( 1-{{e}^{-\frac{Rt}{L}}} \right)\] Hence graph [c] correctly deplete; versus t graph.


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