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RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    The plate resistance of a triode is 15 k \[\Omega \] and voltage gain is 50. If load resistance is 100 k \[\Omega \] the amplification factor will be

    A)  5                 

    B)  50

    C)  57.5              

    D)  75.5

    Correct Answer: C

    Solution :

     \[A=\frac{\mu {{R}_{L}}}{{{R}_{p}}+{{R}_{L}}}\] \[\mu =\frac{A({{R}_{p}}+{{R}_{L}})}{{{R}_{L}}}\] \[=\frac{50(15+100)}{100}=57.5\]


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