NEET Zener Diode as a Voltage Regulator MCQs & PYQs

Practice NEET Zener Diode as a Voltage Regulator Questions

Question 1:

easy

Consider the following statements (A) and (B) and identify the correct answer.
(A) A zener diode is Connected in reverse bias, when used as a voltage regulator.
(B) The potential barrier of p-n junction lies between $0.1$ V to $0.3$ V.

(2021)

Statement (A) is correct as Zener diodes exclusively operate in the reverse breakdown region for voltage regulation. Statement (B) is incorrect because the typical potential barrier is around $0.7$ V for Silicon and $0.3$ V for Germanium, not restricted to $0.1$ V to $0.3$ V.

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Question 2:

easy

Zener diode is used as:

(1999)

When connected in reverse bias in parallel with a load, a Zener diode provides a constant DC output voltage regardless of minor fluctuations in the input DC voltage or load current, functioning perfectly as a D.C. voltage stabilizer.

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