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12th Class Physics Alternating Current / प्रत्यावर्ती धारा Question Bank MCQs - Alternating Current

  • question_answer
    The sharpness of tuning of a series LCR circuit at resonance is measured by Q factor of the circuit which is given by

    A)  \[\operatorname{Q}=\frac{1}{R}\sqrt{\frac{L}{C}}\]

    B) \[\operatorname{Q}=\frac{1}{R}\sqrt{\frac{C}{L}}\]

    C)  \[\operatorname{Q}=\frac{1}{L}\sqrt{\frac{R}{\operatorname{C}}}\]

    D) \[\operatorname{Q}=\frac{1}{C}\sqrt{\frac{R}{L}}\]

    Correct Answer: A

    Solution :

    Option [a] is correct Explanation: Q factor of a series LCR circuit is given by \[\operatorname{Q}=\frac{1}{\operatorname{R}}\sqrt{\frac{\operatorname{L}}{\operatorname{C}}}\]


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