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The quality factor is defined as?

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The quality factor is defined as?

(a) I

(b) IC

(c) I/IC

(d) IC/I

I have been asked this question in an interview for job.

My question is taken from Resonant Frequency for a Tank Circuit topic in section Resonance & Magnetically Coupled Circuit of Network Theory

1 Answer

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Right choice is (d) IC/I

The explanation: The quality factor is defined as IC/I. Quality factor = IC/I.  As the frequency goes above resonance capacitive reactance dominates and impedance decreases.

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