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CMC Medical CMC-Medical VELLORE Solved Paper-2012

  • question_answer
    If before the saturation state of a diode, for the plate voltages 400 V and 200 V the currents are \[{{i}_{1}}\] and \[{{i}_{2}}\] respectively, then the ratio of \[{{i}_{1}}/{{i}_{2}}\] is

    A)  \[2/1\]                                

    B)  \[1/2\]

    C)  \[\sqrt{2}/4\]                   

    D)  \[2\sqrt{2}/1\]

    Correct Answer: A

    Solution :

                    In a diode, before saturation region linear region comes. In linear region \[{{i}_{p}}\propto {{V}_{p}}\] \[\Rightarrow \]                \[\frac{{{i}_{1}}}{{{i}_{2}}}=\frac{{{V}_{{{p}_{1}}}}}{{{V}_{{{p}_{2}}}}}=\frac{400}{200}=\frac{2}{1}\]


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