(a) (b) (i) Name the type of a diode whose characteristics are shown in Fig. 14.9 (A) and Fig. 14.9(B).

Question

Philoid · Accepted Answer

Fig.14.9(A) is the characteristic of any PN junction diode. The first quadrant represents the forward bias of the diode. P is the point where it reaches the break down voltage. Depending on the value of P we can further classify them to zener or normal PN junction diode.

Fig.14.9(B) is the characteristic of photo electric diode.

(ii) What does the point P in Fig. (A) represent?

P is called the knee or the breakdown voltage. At this point the current vigorously increases.

(iii) What does the points P and Q in Fig. (B) represent?

We can see that at point Q, V = 0. Current is maximum at this point. At point Q current completely vanishes. This voltage at this point is called the stopping potential.

(a)(b)(i) Name the type of a diode whose characteristics are shown in Fig. 14.9 (A) and Fig. 14.9(B).

(a)

(b)

(i) Name the type of a diode whose characteristics are shown in Fig. 14.9 (A) and Fig. 14.9(B).