Physics-Ohm's Law
NEET Physics Ohm's Law MCQ Question
Type: MCQ-diagram based-Easy-Class 12
Consider a conductor with length doubled and cross-sectional area halved. According to Ohm's Law, how will the resistance change?
A
Resistance will be quadrupled.
B
Resistance will be halved.
C
Resistance will remain unchanged.
D
Resistance will be doubled.
Correct Answer
Option A
Detailed Explanation
According to Ohm's Law and the relation R ∝ l/A, doubling the length and halving the cross-sectional area results in resistance becoming four times the original.
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