When Zener diode is forward biased, it behaves like an ordinary diode and when reversing biased, it will be a voltage stabilizer. Also, at room temperature, the voltage across the depletion layer for silicon is about 0.6V−0.7V and for germanium is about 0.3V−0.35V Hence, statement A is correct but statement B is wrong.
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…
NEET UG 2021 — Physics Modern Physics
2021mcqeasy
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 0.1V to 0.3V.
Official previous-year question
Held on 30 Apr 2021 · Verified 9 Jul 2026.
Options
- A
(A) and (B) both are correct.
- B
(A) and (B) both are incorrect.
- C
(A) is correct and (B) is incorrect.
- D
(A) is incorrect but (B) is correct.
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