General exam question G7A02
Subelement G7, PRACTICAL CIRCUITS· Group G7A
Which of the following components are used in a power supply filter network?
- A.Diodes
- B.Transformers and transducers
- C.Capacitors and inductors (correct answer)
- D.All these choices are correct
WhyA power supply filter network uses capacitors and inductors. A power supply's filter network smooths the rectifier's pulsating output into steady DC using capacitors, which store charge to fill in the gaps, and inductors, which resist changes in current, working together, answer C. Diodes belong to the rectifier stage rather than the filter itself, and transducers aren't part of a power supply filter at all, so A, B, and D are wrong.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2023-2027 NCVEC Element 3 pool (public domain); the explanation above is original writing, see our methodology.
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