(a)
(b)
(i) Name the type of a diode whose characteristics are shown in (a) and (b)
(ii) What does the point P in Fig. (A) represent?
(iii) What do the points P and Q in Fig.(B) represent?
Explanation:-
i) Figure a) represents the characteristics of the Zener diode and Figure b) represents a solar cell. The Zener diode remains non-conductive initially, but when the reverse voltage exceeds the Zener breakdown voltage, it starts conducting heavily.
ii) Figure a) the point P represents the zener breakdown voltage. At this point, the Zener diode provides a stable output voltage despite changes in the input voltage or load current, a feature utilized in voltage regulation.
Before P, in the reverse-biased region, the current is negligible. Beyond P, the current rises sharply.
iii) Figure b) the point Q represents negative current and zero voltage.