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Passive Filters

Q1: In a series resonant band-pass filter, a lower value of Q results in

A a higher resonant frequency

B a smaller bandwidth

C a higher impedance

D a larger bandwidth

ANS:D - a larger bandwidth

Because bandwidth is (f2-f1) is inversly proportional to Q i.e. quality factor.

(f2-f1) /f0 = 1/q0.



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