AIIMS AIIMS Solved Paper-2014

  • question_answer
    The transfer ratio \[\beta \]of a transistor is 50. The input resistance of the transistor, when used in the common emitter mode is\[1k\Omega .\]. The peak value of the collector alternating current for an input peak voltage of 0.01 V is

    A) \[0.25\mu A\]                   

    B) \[0.01\mu A\]

    C) \[500\mu A\]                                    

    D) \[100\mu A\]

    Correct Answer: C

    Solution :

                    Input current \[=\frac{{{V}_{i}}}{{{R}_{i}}}=\frac{0.01}{{{10}^{3}}}\] \[={{10}^{-5}}A\] Output collector current \[=\beta \times \text{ input current}\] \[=\text{5}0\times \text{1}{{0}^{-\text{5}}}\] \[=500\mu A\]


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