Exam-style question
Try this first
How does the behavior of a Zener diode differ from that of an ordinary diode under reverse bias?.
- A.Zener diodes block current completely in reverse bias.
- B.Zener diodes conduct current in reverse at a specified voltage.
- C.Ordinary diodes conduct current in reverse at a specified voltage.
- D.Both types of diodes behave the same under reverse bias.
Model answer
What a good answer should say
- Zener diodes conduct current in reverse at a specified voltage.
Explanation
Why this works
Zener diodes are specifically designed to conduct in reverse when the reverse voltage exceeds a certain threshold, known as the Zener breakdown voltage. In contrast, ordinary diodes do not conduct in reverse and will block current until breakdown occurs, which can damage them.
This behavior is essential for applications requiring voltage regulation.
Common mistake
No common mistake is linked to this question yet.