Extra exam question E7C05
Subelement E7, PRACTICAL CIRCUITS· Group E7C
Which filter type has ripple in the passband and a sharp cutoff?
- A.A Butterworth filter
- B.An active LC filter
- C.A passive op-amp filter
- D.A Chebyshev filter (correct answer)
WhyA Chebyshev filter has ripple in the passband and a sharp cutoff. A Chebyshev filter is designed to trade some ripple in its passband for a sharper transition (cutoff) between the passband and stopband than a smoother-responding filter would give, answer D. A Butterworth filter is specifically designed for a maximally flat passband with no ripple, and "active LC filter" and "passive op-amp filter" aren't standard filter-response categories in the way this question is asking about.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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