KVPY Sample Paper KVPY Stream-SX Model Paper-21

  • question_answer
    Both the inductors and the cell are ideal. Find the current (in Amperes) in 2H inductance in steady state.

    A) Zero

    B) 1A  

    C) 2A

    D) 3A

    Correct Answer: D

    Solution :

    In steady state current from battery \[=\frac{10}{5}=5A\]
    In parallel inductors \[{{L}_{1}}{{I}_{1}}={{L}_{2}}{{I}_{2}}\] all the time
    \[\Rightarrow {{i}_{1}}=\frac{{{L}_{2}}}{{{L}_{1}}+{{L}_{2}}}i=\frac{3}{3+2}\times 5=3A\]

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