A low-pass filter with a cut-off frequency of 30HZ is cascaded with a high-pass filter with a cut-off frequency of 20HZ. The resultant system of filters will function as (GATE-EE-2011)
A. an all-pass filter
B. an all-stop filter
C. a band stop (band reject) filter
D. a band-pass filter
Explanatory answer :
Low-pass filter with a cut-off frequency of 30HZ:
High-pass filter with a cut-off frequency of 20HZ:
The cascade combination filter is
A band-pass filter
A. an all-pass filter
B. an all-stop filter
C. a band stop (band reject) filter
D. a band-pass filter
Explanatory answer :
Low-pass filter with a cut-off frequency of 30HZ:
High-pass filter with a cut-off frequency of 20HZ:
The cascade combination filter is
A band-pass filter
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