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  • (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  (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?

Answers (1)

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. 

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