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A low-pass filter with a cut-off frequency of 30 Hz is cascaded with a high pass filter with a cut-off frequency of 20 Hz. The resultant system of filters will function as 

(A) an all – pass filter (B) an all – stop filter (C) an band stop (band-reject) filter (D) a band – pass filter

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A low-pass filter with a cut-off frequency of 30 Hz is cascaded with a high pass filter with a cut-off frequency of 20 Hz. The resultant system of filters will function as  a band – pass filter

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