Banking Physics Semiconducting Devices Question Bank Semiconductor Electronics

  • question_answer
    When an n-p-n transistor is used as an amplifier then

    A)  electrons flow from emitter to collector  

    B)  holes flow from emitter to collector

    C)  electrons flow from collector to emitter

    D)  electrons flow from battery to emitter

    Correct Answer: A

    Solution :

     In an n-p-n transistor, the charge carriers, are free electrons in the transistor as well as in external circuit; these electrons flow from emitter to collector.


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