Identify the semiconductor devices whose characteristics are given below, in the order (i), (ii), (iii), (iv) [Figure: (i) I-V curve rising sharply in forward bias, nearly zero in reverse; (ii) the same forward rise plus a sharp drop at a reverse voltage; (iii) two I-V curves labelled dark and illu…

Question

Identify the semiconductor devices whose characteristics are given below, in the order (i), (ii), (iii), (iv) [Figure: (i) I-V curve rising sharply in forward bias, nearly zero in reverse; (ii) the same forward rise plus a sharp drop at a reverse voltage; (iii) two I-V curves labelled dark and illuminated, the illuminated one shifted down into the fourth quadrant; (iv) resistance falling as intensity of light increases.]

Accepted Answer

(1) Simple diode, Zener diode, Solar cell, Light dependent resistance. (i) forward conduction only: simple diode. (ii) forward conduction plus sharp reverse breakdown: Zener diode. (iii) curve shifts into the fourth quadrant under light: solar cell. (iv) resistance falls with light intensity: light dependent resistor.

Step-by-step solution

Why the other options are wrong