Technician exam question T6A01
Subelement T6, ELECTRONIC AND ELECTRICAL COMPONENTS· Group T6A
What electrical component opposes the flow of current in a DC circuit?
- A.Inductor
- B.Resistor (correct answer)
- C.Inverter
- D.Transformer
WhyA resistor is the electrical component that opposes the flow of current in a DC circuit. A resistor is the component built specifically to oppose current flow in a DC circuit, dissipating the energy as heat, answer B. An inductor (A) opposes changes in current rather than current itself, an "inverter" (C) isn't a passive DC component at all, and a transformer (D) transfers energy between windings rather than opposing current.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2026-2030 NCVEC Element 2 pool (public domain); the explanation above is original writing, see our methodology.
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