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

  • question_answer
    The current gain in transistor in common base mode is\[0.99\]. To change the emitter current by \[5\,mA,\] the necessary change in collector will be

    A)  \[0.196\,mA\]

    B)                     \[2.45\,mA\]

    C)  \[4.95\,mA\]

    D)         \[5.1mA\]

    Correct Answer: C

    Solution :

           [c] \[\Delta {{I}_{C}}=\alpha \Delta {{I}_{E}}=0.99\times 5=4.95\,mA\]


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