USCG Exam PracticeAC circuits and theory
Ohm's law states that in a DC circuit, if the voltage is held constant and the resistance is doubled, the current will:
- A. Double
- B. Remain the same
- ✓ Be reduced by halfCorrect
- D. Increase by the square of the resistance
Why C is correct
From I = E/R (NEETS Mod. 1 §3-1), current is inversely proportional to resistance. Doubling R with constant E halves I. Current does not rise with resistance, nor does it change by a squared relationship.
Cited:NEETS Mod. 1 §3-1