A Low-pass filter circuit has a cut-off frequency of 1.23 kHz. The bandwidth of the filter is ______________
(a) 2.46 kHz
(b) 1.23 kHz
(c) 0.615 kHz
(d) 3.69 kHz
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I need to ask this question from Advanced Problems on Filters topic in chapter Filters and Attenuators of Network Theory
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