Question

In a p–n junction there exists a barrier potential. Fig. shows the three barrier potential of a p–n junction marked as I, II and III.

Fig. shows a junction diode biased as.

The correct commbination of biasing and barrier potential is

(1) I and IV; II and V; III and VI

(2) II and IV; III and V; I and VI

(3) I and V; II and VI; III and IV

(4) I and VI; II and V; III and IV

Answer 1

(2) II and IV; III and V; I and VI

I and II and III show barrier potential of an unbiased; forward biased and reverse biased junction diode respectively. In Fig ; IV is a forward biased; V is a reverse biased and VI is forward biased; V is a reverse biased and Vi is unbiased junction diode. The correct commbination of biasing and junction potential is (2).