Question

Derive S.I. unit of resistivity from its formula.

Answer 1

Answer:

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 bythe Greek letter ρ, rho.

Answer 2

Answer:

Explanation:

SI unit of resistivity is Ωm

derivation is as follows:

R=ρ l/A

ρ=RA/l

=Ω x m²/m

=Ωm