12th Class Physics Semiconducting Devices Question Bank Semiconducting Devices Conceptual Problems

  • question_answer
    Can two p-n junction diodes placed back to back work as a p-n-p transistor?

    Answer:

                        No. In that case the n-region forming the base will become quite thick and most of the majority charge carriers rushing from emitter to collector will get neutralised. The transistor will not work.


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