JIPMER Jipmer Medical Solved Paper-2006

  • question_answer
    The amplification Factor of a triode valve is 15. If the grid voltage is changed by 0.3 V, the change in plate voltage in order to keep the current constant (in volt) is:

    A) 0.02                       

    B)        0.002                    

    C) 4.5                         

    D)        5.0

    Correct Answer: C

    Solution :

    \[\mu =15,\]\[\Delta {{V}_{g}}=0.3\] \[\therefore \]  \[\mu =\frac{\Delta {{V}_{p}}}{\Delta {{V}_{g}}}\Rightarrow \Delta {{V}_{p}}=\mu \,\Delta {{V}_{g}}\]    \[=15\times 0.3\]    \[=4.5\,V\]


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