Question

what is resistivity?

Answer 1

Electrical resistivity (also known asresistivity, specific electrical resistance, orvolume resistivity) is a fundamental property that quantifies how strongly a given material opposes the flow of electric current. A low resistivity indicates a material that readily allows the flow of electric current. Resistivity is commonly represented by the Greek letter ρ (rho). The SI unit of electrical resistivity is theohm-metre (Ω⋅m).[1][2][3] As an example, if a1 m × 1 m × 1 m solid cube of material has sheet contacts on two opposite faces, and the resistance between these contacts is 1 Ω, then the resistivity of the material is 1 Ω⋅m.

Answer 2

it the internal resistance of a material used