Question

Define resistivity with mathematical expression?


**WORNG ANWSER WILL BE REPOTED**
:)​

Answer 1

Explanation:

Resistivity definition:

The electrical resistivity is the electrical resistance per unit length and per unit of cross-sectional area at a specified temperature. The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m). It is commonly represented by the Greek letter ρ, rho.