Resitivity is the property of a material. It is given in ρ .
R=ρ L/A is the formula.
where , Resitance is directly proportional to Length & Inversely proportional to Area of cross-section of the given material.
The resistivity is also known as the specific resistance of the material.
It is the resistance of a material per unit length and per unit cross-section of that material.
It is the resistance offered by a conductor to the flow of current is called specific resistance or resistivity.