AIPMT MAIN2008Physics-Current Electricity
AIPMT MAIN 2008 Physics Resistance and Resistivity MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A wire of a certain material is stretched slowly by ten per cent. Its new resistance and specific resistance become respectively
A
1.1 times, 1.1 times
B
1.2 times, 1.1 times
C
1.21 times, same
D
Both remain the same
Correct Answer
Option C
Detailed Explanation
When a wire is stretched, its length increases and its cross-sectional area decreases, leading to an increase in resistance. The specific resistance (resistivity) remains the same as it is a material property.
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