Question

what is difference between resistance of metal wire and Rho( electrical resistivity of material)

Answer 1

Dear student

Resistance is given as
R = V/I
and The resistance of wire is directly proportional to length of wire and inversely proportional to area of cross section of wire
i.e. R ∝ l/A
R = ρ l/A
ρ is constant of proportionality called as resistivity of the wire. It is resistance per unit length of wire

Regards