What do you mean by 3 dB cutoff frequency? Why is it 3 dB,
not 1 dB?
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Answer Posted / sumit
70% of the is occupied in 3db bandwidth that is why 3db band
width is take.in 3db max power become P(max)*.707. if we
take 1 db instead of 3db than power occupied will be zero
i.e. 20 log1=0.
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