Question

The length and area of wire are given as 0.2 m and 0.5 m2 respectively. The resistance of that wire is 3 Ω, calculate the resistivity?​

Answer 1

Calculate the resistance of a metal wire of length 2m and area of cross section 1.55 × 10^ - 6 m^2 , if the resistivity of the metal be 2.8 × 10^ - 8 ohm m.