Passive Filters - Engineering

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.