Question

what will happen to the resistivity of a conductor if its length becomes 10 times?

Answer 1

Answer:

here is ur answer mate I

Explanation:

The Resistivity of the wire will not change with the change in length. Resistivity is a property of the wire, it doesn't depend upon it's length or cross-sectional area.

hope it helps you

Answer 2

Answer: Resistivity will not change.

Explanation:

Resistivity(ρ) :It is a measure of the resisting power of a specified material to the flow of an electric current. It a fundamental property of a material.It is a constant just like density. It has SI unit of Ohm meter(Ωm).

We know that,

$\rm Resistance(R) \propto Length(L)$

$\rm Resistance(R) \propto \dfrac{1}{Area(A)}$

By removing the '∝' sign, we get a constant 'ρ' which is Resistivity.

$\boxed{\rm R=\rho\dfrac{l}{a} }$

∴ if we increase the length by 10 times, the resistivity will not change as resistivity only depends on the nature of material not length or area of the material.

Hence, resistivity will not change.