JEE Main & Advanced Physics Semiconducting Devices Question Bank Self Evaluation Test - Semiconductor Electronics: Materials, Devices and Simple Circuits

  • question_answer
    A transistor can be used as an amplifier when

    A)  emitter is forward biased and collector is reverse biased

    B)  both are reverse biased

    C)  both emitter and collector are forward

    D)  None of these

    Correct Answer: A

    Solution :

    [a] The emitter produces majority charge carriers, so in order that these reach collector, emitter is forward biased, while collector is reverse biased.


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