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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 22

  • question_answer
    A series LR circuit is connected to a voltage source with \[V(t)={{V}_{0}}\]since t. After very large time, current I(t) behaves as \[\left( {{t}_{0}}>>\frac{L}{R} \right)\]

    A)

    B)

    C)

    D)

    Correct Answer: D

    Solution :

    [d]: Current in LR circuit is \[I=\frac{{{V}_{0}}}{\sqrt{{{R}^{2}}+{{\omega }^{2}}{{L}^{2}}}}\sin \left( \omega t-\frac{\pi }{2} \right),\] it is sinusoidal in nature.


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