Extra exam question E5B06
Subelement E5, ELECTRICAL PRINCIPLES· Group E5B
E5B06
What is susceptance?
- A.The magnetic impedance of a circuit
- B.The ratio of magnetic field to electric field
- C.The imaginary part of admittance (correct answer)
- D.A measure of the efficiency of a transformer
WhySusceptance is the imaginary part of admittance. Susceptance is the imaginary part of admittance, playing the same role for admittance that reactance plays for impedance, answer C. It isn't a "magnetic impedance," isn't a ratio of magnetic to electric field, and isn't a measure of transformer efficiency, those describe different, unrelated quantities.
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.
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