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MHT CET2019Morning ShiftPhysicsSemiconductorsActual

Which of the following regions of transistors are, respectively, heavily dopped and lightly dopped?

Options

  1. ACollector and emitter
  2. BBase and emitter
  3. CEmitter and base
  4. DEmitter and collector

Correct answer

C. Emitter and base

Step-by-step solution

In a transistor, emitter region is highly doped because it injects charge carries toward base and collector region. Collector region is moderately doped because in recombination of charge carriers take place in this region. Base region are lightly doped, so that recombination of charge carriers is small.

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