Consider the following statements (A) and (B) and identify the… | NEET 2021

Q60NEET 2021Easy

Special Purpose Diodes

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.

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Answer: (d)

(A) Correct: a Zener regulator works in reverse bias (breakdown region).
(B) Incorrect: the barrier potential is about $0.7$ V for Si and $0.3$ V for Ge, not $0.1$ to $0.3$ V in general.
So the answer is (d) (A) is correct and (B) is incorrect.

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