MCQ
When a hole is produced in $P-$type semiconductor, there is:
- AExtra electron in valence band
- BExtra electron in conduction band
- ✓Missing electron in valence band
- DMissing electron in conduction band
✓
Answer
Correct option: C.
Missing electron in valence band
A hole is not itself a physical quantity but a missing electron in valence band. An electron from adjacent site jumps to fill this hole and thus creates a hole at its former site. So it seems as if the hole itself has moved.
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