Question

Drift current is due to ___________

(a) Applied electric field over a given distance

(b) Random motion of electrons

(c) Random motion of holes

(d) Recombination of holes and electrons

I had been asked this question during an interview.

My question is based upon Drift and Diffusion Current in portion Diode Circuit of Analog Circuits

Answer 1

The correct option is (a) Applied electric field over a given distance

To elaborate: Drift current is a type of electric current due to the movement of charge carriers which occurs because of applied electric field across the p-n junction often stated as electromotive force over a given distance.