NEET Physics Ohm's Law MCQ Question
Consider a conductor of length l and cross-sectional area A. If the conductor is cut lengthwise into two identical slabs, each having a cross-sectional area of A/2, what happens to the resistance of each slab compared to the original conductor?
The resistance of each slab doubles.
The resistance of each slab remains the same.
The resistance of each slab is halved.
The resistance of each slab quadruples.
Correct Answer
Detailed Explanation
When the conductor is cut lengthwise into two slabs, each slab has half the original cross-sectional area. Resistance is inversely proportional to the cross-sectional area, so the resistance of each slab doubles.
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