General exam question G7A03
Subelement G7, PRACTICAL CIRCUITS· Group G7A
Which type of rectifier circuit uses two diodes and a center-tapped transformer?
- A.Full-wave (correct answer)
- B.Full-wave bridge
- C.Half-wave
- D.Synchronous
WhyA full-wave rectifier using two diodes and a center-tapped transformer is the type described. A full-wave rectifier using two diodes relies on a center-tapped transformer, each diode conducting on alternate halves of the AC cycle by referencing opposite ends of the secondary against the center tap, answer A. A full-wave bridge rectifier uses four diodes and doesn't need a center tap, a half-wave rectifier uses just one diode and no center tap, and a synchronous rectifier uses switched transistors rather than simple diodes, so B, C, and D don't match this two-diode, center-tapped configuration.
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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