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KVPY Sample Paper KVPY Stream-SX Model Paper-25

  • question_answer
    The value of current in two series L C R circuits at resonance is same when connected across a sinusoidal voltage source. Then:

    A) both circuits must be having same value of capacitance and inductor

    B) in both circuits ratio of L and C will be same

    C) for both the circuits \[{{X}_{L}}/{{X}_{C}}\] must be same at that frequency

    D) both circuits must have same impedance at all frequencies.

    Correct Answer: C

    Solution :

    \[{{X}_{L}}={{X}_{C}}\] at resonance \[\therefore \]      \[\frac{{{X}_{L}}}{{{X}_{C}}}=1.\] for both circuits


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