Question

In a one pole active low pass filter, the cut off frequency is fc. Then

a.

gain decreases at the rate of 20 dB per decade increase in frequency above fc

b.

gain decreases at the rate of 20 dB per decade decrease in frequency below fc

c.

gain decreases at the rate of 40 dB per decade increase in frequency above fc

d.

gain decreases at the rate 40 dB per decade decrease in frequency below fc

Answer: (a).gain decreases at the rate of 20 dB per decade increase in frequency above fc

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Q. In a one pole active low pass filter, the cut off frequency is fc. Then

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