General exam question G5A03
Subelement G5, ELECTRICAL PRINCIPLES· Group G5A
Which of the following is opposition to the flow of alternating current in an inductor?
- A.Conductance
- B.Reluctance
- C.Admittance
- D.Reactance (correct answer)
WhyReactance is the opposition to the flow of alternating current in an inductor. An inductor's opposition to the flow of alternating current is called reactance, specifically inductive reactance, answer D. Conductance is the inverse of resistance, reluctance describes opposition to magnetic flux in a magnetic circuit, and admittance is the inverse of impedance, none of which is the term for an inductor'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.