Question

What do you understand by resistivity of a conductor?

Answer 1

Answer:

Resistivity: It is defined as a measure of the resistance of a given size of a material that conducts electricity.

Here resistance is the force that opposes the flow of electrons.

R = ρl/A

R is Resistance.

ρ is Resistivity.

l is Length of the conductor.

A is Area of cross section of conductor.

The S.I units are Ω-m (ohm-metre)