alleryFor a uniform wire of resistance R = ρl/A, the resistivity ρ depends on:
Athe length of the wire only
Bboth the length and the area
Cthe cross-sectional area only
Dthe material of the wire only
Answer & Solution
Correct answer: D. the material of the wire only
Resistivity is an intrinsic property of the material
R depends on l and A, but ρ does not.
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