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Which of the following filter amplifies frequencies with a certain band?(a) band pass filter(b) band stop filter(c) low pass filter(d) high pass filterThe question was asked in class test.The doubt is from Writing System in portion Recording System of Biomedical Instrumentation

Answer»

Correct choice is (a) band PASS filter

To elaborate: Band pass filter AMPLIFIES frequencies WITHIN a certain band. Band stop filter amplifies all the frequencies except those in a certain band. High pass filter amplifies SIGNAL above a certain frequency. Low pass filter amplifies signals below a certain frequency.



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