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Question: Answered & Verified by Expert
In an $n-p-n$ transistor
PhysicsSemiconductorsWBJEEWBJEE 2013
Options:
  • A the emitter has higher degree of doping compared to that of the collector
  • B the collector has higher degree of doping compared to that of the emitter
  • C both the emitter and collector have same degree of doping
  • D the base region is most heavily doped
Solution:
2668 Upvotes Verified Answer
The correct answer is: the emitter has higher degree of doping compared to that of the collector
In an $n-p-n$ or $p-n-p$ transistor, the left hand side thick layer of the transistor is heavily doped known as emitter and right hand side thick layer of the transistor is moderately doped known as collector.

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