General exam question G5A04
Subelement G5, ELECTRICAL PRINCIPLES· Group G5A
G5A04
Which of the following is opposition to the flow of alternating current in a capacitor?
- A.Conductance
- B.Reluctance
- C.Reactance (correct answer)
- D.Admittance
WhyReactance is the opposition to the flow of alternating current in a capacitor. A capacitor's opposition to the flow of alternating current is called reactance, specifically capacitive reactance, answer C. Conductance is the inverse of resistance, reluctance applies to magnetic circuits, and admittance is the inverse of impedance, so none of those names a capacitor's AC opposition.
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.