Question

I-V characteristics of four devices are shown in Fig. 15.1

Fig. 15.1

Identify devices that can be used for modulation:

(a) ‘i’ and ‘iii’.

(b) only ‘iii’.

(c) ‘ii’ and some regions of ‘iv’.

(d) All the devices can be used.

Answer 1

(c) ‘ii’ and some regions of ‘iv’.