Answer to Question #89918 in Electricity and Magnetism for Shivam Nishad

Question

Obtain an expression for the drift velocity of electrons in a metallic conductor.

Answer 1

if the field strength in the conductor is E, then the electron velocity

$$v = \frac{eE\tau}{m}$$

and the mean or drift velocity

$$v = \frac{eE\tau}{2m}=\mu E$$

​where τ is pulse relaxation time