Question

2 copper wires of length l and 2l having radii r and 2r respectively. what is the ratio of their specific resistances.

Answer 1

Answer:

ExplanTwo copper wires of length l and 2 l have radii r and 2 r respectively. let us consider two copper wires are A and B. Hence, The ratio of their specific resistance will be 2:1

Answer 2

Answer:1:1

Explanation:two copper wire means the material of which they made is same so specific resistance (restivity)would be same so ratio is:

Rho/rho=1:1

So answer is 1:1

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