What is Q value ?

1.	What is Q value ?
Answer» Solution :It is the sharpness of RESONANCE and is defind as the RATIO of between resonant frequency to the BANDWIDTH of the circuit. BAND WIDTH - If `f_1` and `f_2` are two frequencies for which the current is `1/sqrt 2 I_max. where 1/sqrt 2` is the current at resonant frequency `f_0`, then `(f_1-f_2)` is band width and `Q= f_0/f_1-f_2`

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