General exam question G5C09
Subelement G5, ELECTRICAL PRINCIPLES· Group G5C
G5C09
What is the capacitance of three 100-microfarad capacitors connected in series?
- A.0.33 microfarads
- B.3.0 microfarads
- C.33.3 microfarads (correct answer)
- D.300 microfarads
WhyThree 100-microfarad capacitors connected in series have a capacitance of about 33.3 microfarads. Three equal capacitors in series combine to one-third the value of a single one, so three 100-microfarad capacitors in series give 100 ÷ 3, about 33.3 microfarads, answer C. The other values don't match the series-capacitance formula applied to three equal 100 µF capacitors.
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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