Manipal Medical Manipal Medical Solved Paper-2012

  • question_answer
    In a. transistor, the collector current is always less than the emitter current because

    A)  collector side is reverse biased and the emitter side is forward biased

    B)  a few electrons are lost in the base and only remaining ones reach the collector

    C)  collector being reverse biased, attracts less electrons

    D)  collector side is forward biased and emitter side is reverse biased

    Correct Answer: B

    Solution :

     Due to forward bias at the emitter-base Junction, the majority chaise carrier electrons of emitter get repelled from the negative tenninal and move towards base. Some of these electrons combine with the majority charge carrier holes present in the base and most of the electrons reach the collator, crossing the collector-base junction. This implies that collector, current is always less than the emitter current due to the reason [b].


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