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Answer :

Applications of zener diode are :

Zener diode can be use for voltage regulator.

Zener diode can be use for clippers or limiters.

Zener diode can be use for overvoltage protection.

Zener diode can be use as voltage reference.

Zener diode can be use as transistor regulator.

These are some applications of zener diode.
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