Question

There are two wires of the same length and of the same material with radius r and 2r respectively. both of them are connected in parallel find the ratio of heat produced in them

Answer 1

The resistivity or specific resistance of a material is an intensive property and it is defined as a resistance offered by a unit length and unit cross section area of that material when a fixed voltage is applied across it. so the specific resistance only depends upon temperature and material not on physical properties like size and shape.

Hence B is correct option.

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Answer 2

Explanation:

The resistivity or specific resistance of a material is an intensive property and it is defined as a resistance offered by a unit length and unit cross section area of that material when a fixed voltage is applied across it. so the specific resistance only depends upon temperature and material not on physical properties like size and shape.

Hence 1:1 will be the answer.