Extra exam question E9G06
Subelement E9, ANTENNAS AND TRANSMISSION LINES· Group E9G
On the Smith chart shown in Figure E9-3, what is the name for the large outer circle on which the reactance arcs terminate?
- A.Prime axis
- B.Reactance axis (correct answer)
- C.Impedance axis
- D.Polar axis
WhyOn the Smith chart in Figure E9-3, the large outer circle on which the reactance arcs terminate is called the reactance axis. In Figure E9-3, the large outer circle, the boundary where every reactance arc terminates, is called the reactance axis, representing the locus of purely reactive impedance (zero resistance), answer B. "Prime axis," "impedance axis," and "polar axis" aren't the standard names for this specific outer boundary circle.
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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