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JEE Main & Advanced Physics Semiconducting Devices Question Bank Valve Electronics (Diode and Triode)

  • question_answer
    Before the saturation state of a diode at the plate voltages of 400 V and 200 V respectively the currents are i1 and i2 respectively. The ratio i1/i2 will be

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

    B)            \[2\sqrt{2}\]

    C)            2    

    D)            1/2

    Correct Answer: C

    Solution :

                       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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