7
QuizMultiple Choice

Ohm's Law

Question 7 • Crowley Credit Recovery Physics B

For a constant voltage, how is the resistance related to the current?

Answer
A
Resistance is inversely proportional to current, so when the resistance doubles, the current is cut in half.
B
Resistance is directly proportional to current, so when the resistance doubles, the current is cut in half.
C
Resistance is inversely proportional to current, so when the resistance doubles, the current doubles.
D
Resistance is directly proportional to current, so when the resistance doubles, the current doubles.

Explanation

Ohm’s law is V = IR, so for a constant voltage, the current is I = V/R. This means current decreases as resistance increases: if resistance doubles, the current is cut in half. Therefore, resistance is inversely proportional to current, as choice A states.

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