AIIMS AIIMS Solved Paper-2006

  • question_answer
    The minimum potential difference between the base and emitter required to switch a silicon transistor ON is approximately:

    A) 1 V

    B)                       3 V                         

    C)       5 V                         

    D)       4.2 V

    Correct Answer: A

    Solution :

               To switch on the transistor, the emitter-base junction of a transistor is forward biased while collector-base junction is reverse biased. The cut-off voltage for silicon is S\[\sim 1V,\] so to switch on a silicon transistor a potential difference of 1 V approximately is required between the base and emitter.


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