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The circuit given below, represents which filter?

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in Network Theory by (157k points)
The circuit given below, represents which filter?

(a) Low-pass

(b) High-pass

(c) Band-pass

(d) Band-stop

I had been asked this question in an internship interview.

The above asked question is from Advanced Problems on Filters in portion Filters and Attenuators of Network Theory

1 Answer

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Right answer is (b) High-pass

Easiest explanation: From the given circuit, we can infer that Roll off of the Filter circuit is 80dB/decade. This Roll-off value is obtained as second order high pass filter followed by another 2nd order HPF results in an HPF.

Therefore the circuit represents a High-pass Filter.

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