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NEET Sample Paper NEET Sample Test Paper-4

  • question_answer
    In input resistance of a CE amplifier is \[333\,\Omega \] and the load resistance is \[5K\,\Omega A\] change of base current by \[15\,\mu A,\] result in the change of collector current by\[1mA\]. The voltage gain of the amplifier is:

    A)  550               

    B)  101

    C)  1001                          

    D)  501

    Correct Answer: C

    Solution :

    Voltage gain,  \[{{a}_{\upsilon }}=\frac{\Delta {{l}_{C}}\times {{R}_{L}}}{\Delta {{l}_{b}}\times {{R}_{1}}}\] \[=\frac{1\times {{10}^{-3}}\times 5\times {{10}^{3}}}{15\times {{10}^{-6}}\times 333}=1001\]


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