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JEE Main & Advanced Physics Semiconducting Devices Question Bank Graphical Questions

  • question_answer
    A source voltage of 8V drives the diode in fig. through a current-limiting resistor of 100 ohm. Then the magnitude of the slope load line on the V-I characteristics of the diode is

    A)            0.01

    B)            100

    C)            0.08

    D)            12.5

    Correct Answer: A

    Solution :

                       If i is the current in the diode and V is voltage drop across it, then for given figure voltage equation is                    \[i\times 100+V=8\]Þ\[i=-\frac{1}{100}V+\frac{8}{100}\]Þ\[i=-(0.01)V+0.08\]            Thus the slope of i-V graph \[=\frac{1}{{{R}_{L}}}=0.01\]


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