Electronics - RC Circuits - Discussion


If the bandwidth of an RC low-pass filter is 20 kHz, the cutoff frequency is also 20 kHz.

[A]. True
[B]. False

Answer: Option A


No answer description available for this question.

Vineeth said: (Mar 21, 2017)  
Cut off frequency is the frequency at which the output voltage equals to 70.1% of the input signal.

Thus, the above or below this frequency of 20KHz the output will be less than that of the input voltage.

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