If f1 and f2 and half-power frequency and f0 be resonant frequency, th – McqOptions

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1.	If f1 and f2 and half-power frequency and f0 be resonant frequency, the selectivity of R-L-C series circuit is given by
A.	(f2 - f1)/2f0
B.	(f2 - f1)/f0
C.	(f2 - f0)/(f1 - f0)
D.	(f2 - f1)/(f1 - f0)
Answer» C. (f2 - f0)/(f1 - f0)

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