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J & K CET Engineering J and K - CET Engineering Solved Paper-2010

  • question_answer
    In an L-C-R series AC circuit at resonance

    A)  the capacitive reactance is more than the inductive reactance

    B)  the capacitive reactance equals the inductive reactance

    C)  the capacitive reactance is less than the inductive reactance

    D)  the power dissipated is minimum

    Correct Answer: B

    Solution :

    At resonance (series resonant circuit) \[{{X}_{L}}={{X}_{C}}\] \[\Rightarrow \] \[{{Z}_{\min }}=R,\] ie, circuit behaves as resistive circuit.


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