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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2014

  • question_answer
    A transistor is operated in common emitter configuration at constant collector voltage \[\text{15}0\text{ }\mu \text{A}\]such that a change in the base current from \[\text{5 mA}\]to\[\text{10 mA}\]. Produces a change in the collector current from \[\text{ }\!\!\beta\!\!\text{ }\]to \[\left( \frac{1}{V(volume)} \right)\]. The current gain (\[\frac{3}{4}\text{m}/\text{s}\]) is

    A) 67                                          

    B) 75

    C) 100                                        

    D) 50

    Correct Answer: C

    Solution :

                    AC current gain \[\beta \]is defined as the ratio of the collector to the base current at constant collector voltage. \[\frac{16}{25}{{\lambda }_{0}}\] Given,  \[3\Omega \] \[4\Omega \] \[4.5\Omega \]


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