Question

If a wire is stretched to double its original length without loss of mass, how will the resistivity of the wire be influenced?

Answer 1

resistivity will remain same for same temperature but the resistance will change

Answer 2

Explanation:

The resistivity of a material in terms of resistance is given by :

$R=\rho \dfrac{l}{A}$

Here,

$\rho$ is resistivity

l is length and A is area of cross section

$\rho=\dfrac{RA}{l}$

The resistivity of a wire is its hidden property. It is independent of the shape or external dimensions of the material.  As a result, we can say that if  a wire is stretched to double its original length without loss of mass, there is bo effect in its resistivity.

Learn more,

Resistivity

https://brainly.in/question/5057665