Extra exam question E5D07
Subelement E5, ELECTRICAL PRINCIPLES· Group E5D
What combines to create the self-resonance of a component?
- A.The component’s resistance and reactance
- B.The component’s nominal and parasitic reactance (correct answer)
- C.The component’s inductance and capacitance
- D.The component’s electrical length and impedance
WhyA component's self-resonance is created by the combination of its nominal reactance and its parasitic reactance. A component's self-resonance comes from the combination of its intended, nominal reactance (the inductance or capacitance it's built to provide) and the small parasitic reactance that inevitably comes along with real-world construction, the two together forming an unintended resonant circuit within the component itself, answer B. Resistance and reactance together, inductance and capacitance together, or electrical length and impedance together don't describe this specific nominal-plus-parasitic combination.
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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