In the circuit given below, the Roll-off of the filter is _______________(a) 20 dB/decade(b) 40 dB/decade(c) 60 dB/decade(d) 80 dB/decadeThis question was posed to me during an interview.This is a very interesting question from Advanced Problems on Filters topic in division Filters and Attenuators of Network Theory

In the circuit given below, the Roll-off of the filter is ____________

1.	In the circuit given below, the Roll-off of the filter is _______________(a) 20 dB/decade(b) 40 dB/decade(c) 60 dB/decade(d) 80 dB/decadeThis question was posed to me during an interview.This is a very interesting question from Advanced Problems on Filters topic in division Filters and Attenuators of Network Theory
Answer» Correct answer is (a) 20 dB/decade Best explanation: The given filter is a first ORDER BAND Pass Filter. Also, the Roll-off of the filter is depends UPON the order of the filter. For a first order it is 20dB/decade, for second order it is 40dB/decade, and so on. Therefore, the Roll-off of the filter = 20 dB/decade.

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