1.

A particular band-pass function has a network function as H(s) = \(\frac{s}{s^2+2s+1}\) then, its quality factor Q is ___________(a) \(\frac{3}{4}\)(b) \(\frac{1}{2}\)(c) \(\frac{3}{2}\)(d) \(\frac{1}{4}\)The question was asked in unit test.I'd like to ask this question from Advanced Problems on Filters topic in portion Filters and Attenuators of Network Theory

Answer»

Correct answer is (d) \(\frac{1}{4}\)

EXPLANATION: H(s) = \(\frac{KS}{s^2+as+b}\)

Then, quality factor is GIVEN as \(\frac{\sqrt{b}}{a}\)

Here, b = 1, a = 2, K = 1

Q = \(\frac{1}{2}\) = 0.5.



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