Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
Choose the correct statement about Zener diode :
It works as a voltage regulator in reverse bias and behaves like simple pn junction diode in forward bias.
It works as a voltage regulator in both forward and reverse bias.
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 reverse bias and behaves like simple pn junction diode in forward bias.
Solution
The correct answer is option (A) : It works as a voltage regulator in reverse bias and behaves like simple pn junction diode in forward bias.
Works as voltage regulator in reverse bias and as simple P-n junction in forward bias.
Zener diode behaves as ordinary pn junction diode in the forward bias and behaves as voltage regulator when operated in the reverse bias at the breakdown voltage.