alleryStart learning →A current of 0.025 A flows through a 10 ohm resistor. What is the voltage drop across the resistor?
A2.5 volt
B0.025 volt
C0.25 volt
D25 volt
Answer & Solution
Correct answer: C. 0.25 volt
1. Ohm's law states V = IR.
2. Substitute I = 0.025 A and R = 10 ohm.
3. V = (0.025 A)(10 ohm) = 0.25 V.
4. 2.5 V would result from misplacing a decimal point in the current value.
_Source: OpenStax Physics (CC BY 4.0), Ch 19 "Electrical Circuits", section 19.1 Ohm's law_
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