NEET UG 2021 · Physics · Question 32
NEET 2021 Physics, question 32
Question 32 of the NEET 2021 paper (code O1) is a Physics question from Semiconductor Electronics: Materials, Devices and Simple Circuits. Its idea, Zener Diode as Voltage Regulator, was asked twice, in 2021 and 2026, across NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q32 · Physics
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.
- 1(A) is correct and (B) is incorrect.Official answer
- 2(A) is incorrect but (B) is correct.
- 3(A) and (B) both are correct.
- 4(A) and (B) both are incorrect.
Official answer: option 1 · NTA final answer key
Same idea
Zener Diode as Voltage Regulator, in other papers
NEET asked this idea twice, in 2021 and 2026. The other question below.
- 2026 Q16An ideal Zener diode with breakdown voltage of V is reverse biased with a negative input voltage V. The magnitude of voltage…Figure-based · Medium
Zener Diode as Voltage Regulator: every question and how it was framed
The chapter
Semiconductor Electronics: Materials, Devices and Simple Circuits in ten years of NEET
27 questions from 2017–2026, asked in 10 of 10 papers, about 2.6 a paper. Semiconductor Devices alone had 17.