The current will be tripled. The current will be doubled. The current will be cut in half. The current will stay the same.
I gave my students this multiple choice question: The voltage is held constant in an electric circuit. What will happen to the current in this circuit if the resistance is doubled?

Only one answer is correct among these 4 choices:
- The current will be tripled.
- The current will be doubled.
- The current will be cut in half.
- The current will stay the same.

Could you tell me which one is correct?

The current will be cut in half.