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NEET Sample Paper NEET Sample Test Paper-3

  • question_answer
       A common emitter amplifier is designed with n-p-n transistor \[(a=0.99)\]. The input impedance is \[1\,K\Omega \] and load is \[10\,R\Omega \] The voltage gain will be:  

    A)  \[9.9\]                         

    B)  \[99\]

    C)  \[990\]                

    D)  \[9900\]              

    Correct Answer: C

    Solution :

        As we know that Voltage gain = \[=\beta \times \] Resistance gain (or current gain)             \[\beta =\frac{a}{1-a}=\frac{0.99}{1-0.99}=99\] Voltage gain \[=99\times 10=990\]   


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