Question

what is meant by electric resistivity of a material ? derive it's SI unit​

Answer 1

Answer:

electrical resistivity is the property of a material by virtue of which they resist the flow of current through them.

As we know

R= resistivity (l/a)

SI unit of resistivity =ohm.m

Answer 2

Answer:

T

Explanation:

the resistance of a conductor depend on its length l, area of cross section A, and the nature of its material.

R=rho l/A

The proportionality constant (rho ) is called resistivity of a conductor.

it's SI unit be ohms metre