Question

The reverse biasing in a PN junction diode(a) Decreases the potential barrier(b) Increases the potential barrier(c) Increases the number of minority charge carriers
(d) Increases the number of majority charge carriers

Answer 1

Reverse biased p-n junction diode. The process by which, a p-n junction diode blocks the electric current in the presence of applied voltage is called reverse biased p-n junction diode. ... These positive ions at p-n junction (n-side) oppose the flow of positive charge carriers (holes) from p-side.

Answer 2

Answer: (b)

Explanation:

Using KVL we can see that reverse bias increases potential barrier.

Reason being the external voltage will support the flow of minorities.