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NEET Sample Paper NEET Sample Test Paper-8

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

    A)  550               

    B)  101

    C)  1001              

    D)  501

    Correct Answer: C

    Solution :

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


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