AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Ohm's Law: The potential difference across the ends of a resistor is directly proportional to the current through it, provided its temperature remains the same.
The examiner expects the exact definition as stated in the textbook. Key phrases are "directly proportional," "potential difference," "current," and the condition "temperature remains the same" — omitting the condition can cost marks.