MCQ
A $PN-$ junction has a thickness of the order of
- A$1\,cm$
- B$1\,mm$
- ✓${10^{ - 6}}m$
- D${10^{ - 12}}cm$
✓
Answer
Correct option: C.
${10^{ - 6}}m$
c
When P-type semiconductor is mixed with $N$ - type semiconductor, $PN$ junction is formed. There is very small region which is in order of micro metre . This region is known as depletion region. so, the thickness of $PN ^{-}$ junction depletion region is in order of $10^{-6} m$.
When P-type semiconductor is mixed with $N$ - type semiconductor, $PN$ junction is formed. There is very small region which is in order of micro metre . This region is known as depletion region. so, the thickness of $PN ^{-}$ junction depletion region is in order of $10^{-6} m$.
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