CMC Medical CMC-Medical VELLORE Solved Paper-2012

  • question_answer
    In a transistor, forward bias is always smaller than the reverse bias because it

    A)  helps to produce large voltage gain

    B)  helps to maintain a constant base current

    C)  helps in avoiding excessive heating of transistor

    D)  None of the above

    Correct Answer: C

    Solution :

                    If forward bias is made large, the majority charge carriers would move from the emitter to the collector through the base with high velocity. This would give rise to excessive heat, causing damage to transistor.


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