Question

What is the difference between resistance and resistivity ? pls help as soon as possible ^_^ (I want to understand)​

Answer 1

➡️RESISTANCE :

Property of substance due to which it opposes the flow of electrons.

➡️RESISTIVITY:

Resistivity is the property of the conductor due to which it offers resistance to the flow of current through it .

➡️UNIT OF RESISTANCE :

Ohm

➡️UNIT OF RESISTIVITY

Ohms meter

➡️DEPENDENCE OF RESISTANCE :

=> Length, cross-section area of conductor and temperature.

➡️DEPENDENCE OF RESISTIVITY:

=> Resistivity of the material depends only on its material and temperature.

Answer 2

Definiton :
Resistance is the opposition that a substance offers to the flow of electric current.
Whereas ,
Resistivity of a material is its specific resistance.
Nature :
Moreover,Resistance is variable.But,Resistivity is constant.
SI unit :
SI unit of resistance is ohm.But SI unit of resistivity is ohm metre.
Formula :
R=V/I
Rho=R ×A/l