A wire of resistivity $\rho$ is stretched to double it's length which is it's new resistivity. Give reason for your answer.

The resistivity $\rho$ of a wire is not dependent on its dimensions. It is a property of a material and is the same for a given material at a given temperature.

So, when a wire of resistivity $\rho$ is stretched to double its length, it's resistivity does not change.

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Updated on: 10-Oct-2022

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