11
QuizMultiple Choice

Electricity and Magnetism — Test

Question 11 • Physical Science

How are the current and resistance related when the voltage of a circuit is constant?

Answer
A
The current doubles when the resistance doubles because they are directly proportional.
B
The current is cut in half when the resistance doubles because they are directly proportional.
C
The current doubles when the resistance doubles because they are inversely proportional.
D
The current is cut in half when the resistance doubles because they are inversely proportional.

Explanation

Ohm’s law is V = IR, so when voltage stays constant, current is I = V/R. If resistance doubles, the current becomes half as large; current and resistance are inversely proportional. Therefore, the correct choice is “The current is cut in half when the resistance doubles because they are inversely proportional.”

AI-written and checked against the verified answer.

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