A) voltage regulator in reverse biasing
B) voltage regulator in forward biasing
C) current regulator in reverse biasing
D) current regualtor in forward biasing
Correct Answer: A
Solution :
Zener diode works as a voltage regulator under reverse biasing condition. It is based on the fact that in the break down region, for quite large changes in the zener current, the voltage across the diode remains almost constant.
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