A series LCR circuit has quality factor at its resonant frequency

PHYSICS · Single correct · CBSE · Physics · Alternating Current · Alternating Current

Problem

A series LCR circuit has quality factor Q0Q_0 at its resonant frequency. If the capacitance is reduced to one-quarter of its original value while LL and RR are kept the same, the new quality factor Q′Q' is related to Q0Q_0 by (a) Q′=Q0Q' = Q_0 (b) Q′=12 Q0Q' = \dfrac{1}{2}\,Q_0 (c) Q′=2 Q0Q' = 2\,Q_0 (d) Q′=4 Q0Q' = 4\,Q_0

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