Question

Name 2factors on which the resistivity of a wire depends ?does it depend on the size and shape of the wire?

Answer 1

Resistivity of a conductor depends on the nature of the substance and temperature. It does not depend on the size and shape of the wire. 

Answer 2

factors: 1) material
             2)temperature
             3)area of cross section
             4)length of the conductor
 
when length increases resistivity doubled and when area increases resisitivity is halved