Extra exam question E5C05
Subelement E5, ELECTRICAL PRINCIPLES· Group E5C
What kind of diagram is used to show the phase relationship between impedances at a given frequency?
- A.Venn diagram
- B.Near field diagram
- C.Phasor diagram (correct answer)
- D.Far field diagram
WhyA phasor diagram is used to show the phase relationship between impedances at a given frequency. A phasor diagram is the kind of diagram used to show the phase relationship between different impedances, or between voltage and current, at a specific frequency, representing each quantity as a vector with both magnitude and phase angle, answer C. A Venn diagram illustrates set relationships, and near field and far field diagrams describe antenna radiation zones, none of which shows phase relationships the way a phasor diagram does.
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.
Related questions
- E5C01Which of the following represents pure capacitive reactance of 100 ohms in rectangular notation?
- E5C02How are impedances described in polar coordinates?
- E5C03Which of the following represents a pure inductive reactance in polar coordinates?
- E5C04What type of Y-axis scale is most often used for graphs of circuit frequency response?
- E5C06What does the impedance 50 - j25 ohms represent?