Extra exam question E7C11
Subelement E7, PRACTICAL CIRCUITS· Group E7C
Which of the following measures a filter’s ability to reject signals in adjacent channels?
- A.Passband ripple
- B.Phase response
- C.Shape factor (correct answer)
- D.Noise factor
WhyA filter's shape factor measures its ability to reject signals in adjacent channels. A filter's shape factor, the ratio of its stopband bandwidth to its passband bandwidth, measures how effectively it rejects signals in adjacent channels, a sharper (lower) shape factor meaning better adjacent-channel rejection, answer C. Passband ripple, phase response, and noise factor describe other filter or receiver characteristics, not specifically adjacent-channel rejection.
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.
Related questions
- E7C01How are the capacitors and inductors of a low-pass filter Pi-network arranged between the network’s input and output?
- E7C02What is the frequency response of a T-network with series capacitors and a shunt inductor?
- E7C03What is the purpose of adding an inductor to a Pi-network to create a Pi-L-network?
- E7C04How does an impedance-matching circuit transform a complex impedance to a resistive impedance?
- E7C05Which filter type has ripple in the passband and a sharp cutoff?