Question

Define mobility of electron

Answer 1

1. The drift velocity of an electron for a unit electric field is known as the mobility of the electron.
2. electron mobility characterizes how quickly an electron can move through a metal or semiconductor when pulled by an electric field.
3. The mobility of an electron can be calculated by:

$\mu =V_d/E$

Where V_d is the drift velocity of an electron and E is the external electric field

3. SI unit of electron mobility is $m^2{s}^{-1}{V}^{-1}.$