# what is the difference between resistance and Resistivity

Shyam Chand
37 Points
10 years ago
Resistance (R) of a conductor is defined as the ratio of the potential difference V across the ends of the conductor to the current I flowing through it. so , R= V/ I. This equation is also called ohm`s law.
Shyam Chand
37 Points
10 years ago
see basically , Resistance (R) of a conductor is defined as the ratio of the potential difference V across the ends of the conductor to the current I flowing through it. so , R= V/I. This equation is also called ohm`s law. and specific resistance ( rho) or electrical resistivity of the material of a conductor is defined as the resistance offered by unit length and unit area of cross section by a wire of given material of the conductor. so rho = RA/L , WHERE; R= Resistance of that particular conductor A= area of cross section of wire or any conductor L= whole lenght of it.
sumit singh
35 Points
10 years ago
The electrical resistance of a circuit component or device is defined as the ratio of the voltage applied to the electric current whichflows through it :R = V/I The factor in the resistance which takes into account the nature of the material is the resistivity p=RA/L