MCQ
A Zener diode :
- AIs a lightly doped junction diode.
- ✓Heavily doped junction diode.
- CIs either $p-$type or $n-$type.
- DHas no $p-n$ junction.
✓
Answer
Correct option: B.
Heavily doped junction diode.
The reverse breakdown voltage depends on doping of the diode. Hence, in the Zener diode the heavy doping of its $p-n$ junction is done. The depletion region formed in the diode is very thin $(<1 m)$ and the reverse bias voltage of about $5 V$ which is less than ordinary diode.
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