Question

explain resistivity in electricity

Answer 1

Answer:

resistivity in electricity means how strongly a given material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electric charge.

Answer 2

Answer:

Resistivity is a materialistic property determining the resistance of conductor. It only depends upon the nature of material and doesn't depend upon the dimensions of the conductor (like length and area of cross-section).

It is represented as follows :

$\: \: \: \: \: \: \: \boxed{ \bold{resistivity = \rho}}$

The basic definition of Resistivity is :

It is numerically equal to the resistance of a conductor having unit length and unit area of cross-section .

The SI unit of Resistivity is Ohm-metre

$\: \: \: \: \: \: \: \: \: \boxed{ \bold{SI \: unit = \: \Omega \: m}}$