Extra exam question E6F06
Subelement E6, CIRCUIT COMPONENTS· Group E6F
Which of these materials is most commonly used to create photoconductive devices?
- A.Polyphenol acetate
- B.Argon
- C.Crystalline semiconductor (correct answer)
- D.All these choices are correct
WhyCrystalline semiconductor is the material most commonly used to create photoconductive devices. Photoconductive devices are most commonly built from crystalline semiconductor materials, whose electrical resistance changes predictably in response to light exposure, answer C. Polyphenol acetate and argon aren't the materials typically used for this purpose, and since only the crystalline semiconductor option is actually correct, "all these choices" overstates it.
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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