NEET Physics Ohm's Law MCQ Question
Consider a conductor where its length is doubled while keeping the cross-sectional area constant. Describe the effect on the resistance of the conductor.
The resistance doubles.
The resistance remains unchanged.
The resistance is halved.
The resistance quadruples.
Correct Answer
Detailed Explanation
According to the NCERT context, resistance is proportional to the length of the conductor (R ∝ l). Therefore, when the length is doubled, the resistance also doubles.
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