Choose the correct statement about Zener diode

It works as a voltage regulator only in forward bias
It works as a voltage regulator in forward bias and behaves like simple pn junction diode in reverse bias.
It works as a voltage regulator in both forward and reverse bias.
It works as a voltage regulator in reverse bias and behaves like simple pn junction diode in forward bias.

Correct answer: It works as a voltage regulator in reverse bias and behaves like simple pn junction diode in forward bias.

Solution

The Zener diode is specifically designed to operate in reverse bias, where it maintains a stable output voltage, making it effective as a voltage regulator. In forward bias, it behaves like a standard diode, allowing current to flow with a small voltage drop.

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