Question

How resistivity depends on area of cross section of the wire?

Answer 1

Answer:

HEY Buddy here's ur answer

Resistance is inversely proportional to area of cross section. larger will be the area lower will be the resistance and vice versa. this is because through a conductor with large area of cross section current can easily flow and hence resistance is low.

Answer 2

Answer:

Actually no, the resistivity does not depend on the area of cross-section. The resistivity is defined as the resistance of a conductor with unit cross-sectional area and unit length.

As length and area are 1m and 1m^2, the equation is:

R = Ρ l / A

=> R = Ρ 1m/1m^2

=> R = Ρ 1/1

Therefore, R = ρ