General exam question G6B05
Subelement G6, CIRCUIT COMPONENTS· Group G6B
What is an advantage of using a ferrite core toroidal inductor?
- A.Large values of inductance may be obtained
- B.The magnetic properties of the core may be optimized for a specific range of frequencies
- C.Most of the magnetic field is contained in the core
- D.All these choices are correct (correct answer)
WhyA ferrite core toroidal inductor can achieve large inductance values, use a core optimized for a specific frequency range, and contain most of its magnetic field within the core. A toroidal ferrite-core inductor can achieve large inductance values in a compact size, can use a core material specifically formulated for the frequency range needed, and largely confines its magnetic field within the closed-loop core rather than radiating it outward, so all three of these are real advantages, answer D. Since A, B, and C are each individually true, the complete answer has to include all of them.
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.
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