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JEE Main & Advanced Physics Semiconducting Devices Question Bank Junction Transistor

  • question_answer
    In case of NPN-transistors the collector current is always less than the emitter current because [AIIMS 1983]

    A)            Collector side is reverse biased and emitter side is forward biased

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

    C)            Collector side is forward biased and emitter side is reverse biased

    D)            Collector being reverse biased attracts less electrons

    Correct Answer: B

    Solution :

               \[{{i}_{e}}={{i}_{b}}+{{i}_{c}}\Rightarrow {{i}_{c}}={{i}_{e}}-{{i}_{b}}\]


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