JEE Main & Advanced Physics Semiconducting Devices Question Bank Self Evaluation Test - Semiconductor Electronics: Materials, Devices and Simple Circuits

  • question_answer
    What is the voltage gain in a common emitter amplifier, where input resistance is \[3\,\Omega \] and load resistance \[24\,\Omega ,\] \[\beta =0.6\]?

    A)  \[8.4\]

    B)  \[4.8\] 

    C)  \[2.4\]

    D)  \[480\]

    Correct Answer: B

    Solution :

    [b] Voltage gain, \[{{A}_{v}}=\beta \frac{{{R}_{L}}}{{{R}_{i}}}=0.6\times \frac{24}{3}=4.8\]


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