Question

Reverse bias applied to a junction diode 

(a) lowers the potential barrier 

(b) raises the potential barrier 

(c) increases the majority carrier current

(d) increases the minority carrier current

Answer 1

The correct option is (b) raises the potential barrier.

Explanation:

In reverse biasing, the conduction across the p-n junction takes place due to minority carriers, therefore the size of depletion region (potential barrier) rises.