Verified Solution • 2025–26 Session
moderate
QNEET-2021-Ph-626: NEET 2021 Physics - Class 12 NEET-2021-Ph-626 Solution: Consider the following statements (A) and (B) and identify the…
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. (A) is correct and (B) is incorrect. (A) is incorrect but (B) is correct. (A) and (B) both are correct. (A) and (B) both are incorrect.
Multiple Choice Options
- A (A) is correct and (B) is incorrect.
- B (A) is incorrect but (B) is correct.
- C (A) and (B) both are correct.
- D (A) and (B) both are incorrect.
Step-by-Step Verified Solution
In reverse biased, after breakdown, voltage across
the zener diode becomes constant. Therefore
zener diode is connected in reverse biased when
used as voltage regulator.
for Ge Potential barrier V 0 = 0.3 V
Si Potential barrier V 0 = 0.7 V