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RLC Circuits and Resonance

Q1: What is the range between f1 and f2 of an RLC circuit that resonates at 150 kHz and has a Q of 30?

A 100.0 kHz to 155.0 kHz

B 147.5 kHz to 152.5 kHz

C 4500 kHz to 295.5 kHz

D 149,970 Hz to 150,030 Hz

ANS:B - 147.5 kHz to 152.5 kHz

The required deviation is given by frequ/q= 150k/2q =2.5k

Hence the cutoff frequences are

150k-2.5k=147.5

150k+2.5k= 152.5k



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