STANDARDPhysics-Current Electricity
STANDARD Physics Resistivity MCQ Question
Type: MCQ-conceptual-Easy-Class 12
Two copper wires of length l and 2l have radii, r and 2r respectively. What is the ratio of their specific resistances?
A
1 : 2
B
2 : 1
C
1 : 1
D
1 : 3
Correct Answer
Option C
Detailed Explanation
The specific resistance is independent of the dimensions of the wire but depends upon the nature of the material of the wire.
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