Which of these is the best description for a Zener diode ?
Correct answer: C. It is a constant-voltage device
- A. It is a diode
- B. It is a constant current device
- C. It is a constant-voltage device
- D. It works in the forward region
Explanation
A Zener diode is chiefly used in reverse breakdown, where its voltage remains nearly constant over a useful current range. Calling it a constant-current device describes neither its normal purpose nor its characteristic.
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