alleryStart learning →A 100 ohm resistor has 12 V across it. What current flows through it?
A0.12 A
B1.2 A
C8.3 A
D12 A
Answer & Solution
Correct answer: A. 0.12 A
1. Ohm's law rearranged for current gives I = V/R.
2. Substitute V = 12 V and R = 100 ohm.
3. I = 12 V / 100 ohm = 0.12 A.
_Source: OpenStax Physics (CC BY 4.0), Ch 19 "Electrical Circuits", section 19.2 Series Circuits_
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