The resistivity of a wire depends on :

(A) its length
(B) its area of cross-section
(C) its temperature
(D) nature of material
(E) voltage applied across it

Choose the correct answer from the options given below :

(C) and (D) only

The electrical resistivity of a given metallic wire depends on the number density of free electrons in the conductor which is the nature of the material, that is the number of free electrons per unit volume. It also depends on the temperature of the conductor.