JEE Main & Advanced Sample Paper JEE Main Sample Paper-38

  • question_answer In the given circuit, the current drawn from the source is

    A)  \[20\,A\]                      

    B)  \[10\,A\]

    C)  \[5\,A\]                                   

    D)  \[5\sqrt{2}\,A\]

    Correct Answer: D

    Solution :

    \[{{i}_{R}}=\frac{{{V}_{0}}}{R}=\frac{100}{20}=5,\,{{i}_{L}}=\frac{{{V}_{0}}}{{{X}_{L}}}=\frac{100}{10}=10\] and\[{{i}_{C}}=\frac{{{V}_{0}}}{{{X}_{C}}}=\frac{100}{20}=5\] Current, \[i=\sqrt{i_{R}^{2}+{{({{i}_{C}}-{{i}_{L}})}^{2}}}=\sqrt{{{5}^{2}}+{{5}^{2}}}=5\sqrt{2}amp.\].

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