Question

When 5V potential difference is applied across a wire of length 0.1m, the drift speed of electrons is 25 x 10^-4ms^-1 . If the electron density in the wire is 8 x 10²⁸ m^-3 the resistivity of the material is close to

(a) 1.6 x10^-8 Ωm (b) 1.6 x10^-7Ωm (c) 1.6 x10^-6 Ωm (d) 1.6 x10^-5 Ωm

Answer 1

Correct Option (d) 1.6 x10^-5 Ωm

Explanation:

According to the question,