1.

Two copper wires are of the same length, but one is thicker than the other. (1) Which wire will have more resistance? (2) Which wire will have more specific resistance?

Answer»

(1) Thinner wire will have more resistance because the resistance is inversely proportional to the area of cross-section.

(2) Specific resistance of both wire is same because specific resistance depends on the nature of the material which is same in both cases.



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