Question

A student says that the resistance of two wires of same length and same area of cross section is same. This statement is correct if 

(a) Both wires are of different materials

(b) Both wires are made of same material and are at different temperature.

(c) Both wires are made of same material and are at same temperature.

(d) Both wires are made of different materials and are at the same temperature.

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Answer 1

Answer:

- For same length (L) and area (A) resistance depends on ρ and temperature. Hence given statement is correct if both are made up of same material and are at same temperature. Correct option is (c

Explanation:

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Answer 2

Answer:

hello, the above statement is correct for option C.both wires are made up of same material and are at same temperature because resistance depends on resistivity which is property of material and resistivity depends on temperature

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