Physics - Semiconductors Question with Solution | TestHub
The graph given below represents I - V characteristics of zener diode. The part of the characteristics curve that is most relevant for its operation as a voltage regulator is
Options:
Answer:
Solution:
A Zener diode is used as a voltage regulator when it is operated in the reverse breakdown region.
In the given I-V characteristics graph, the reverse bias operation is shown in the third quadrant.
The region 'cd' represents the reverse leakage current before the breakdown occurs.
The region 'de' represents the reverse breakdown region (Zener breakdown), where the voltage across the diode remains almost constant even for large changes in the reverse current.
Therefore, the part 'de' of the characteristics curve is most relevant for its operation as a voltage regulator.
Answer: de
