Technician exam question T5D11
Subelement T5, ELECTRICAL PRINCIPLES· Group T5D
T5D11
What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?
- A.1 volt
- B.10 volts (correct answer)
- C.11 volts
- D.9 volts
WhyA 10-ohm resistor with a current of 1 ampere flowing through it has a voltage of 10 volts across it. Ohm's law gives voltage as current multiplied by resistance: 1 ampere times 10 ohms works out to 10 volts, answer B. A, C, and D don't match that multiplication.
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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