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(B) The characteristic curve of a diode shows the variation of current $(I_p)$ with respect to voltage $(V_p)$ at different temperatures. As the tempe

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$T_1 < T_2 < T_3$

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(B) The characteristic curve of a diode shows the variation of current $(I_p)$ with respect to voltage $(V_p)$ at different temperatures. As the temperature of a semiconductor diode increases,the number of thermally generated charge carriers increases,which leads to an increase in the saturation current. From the given graph,for a fixed voltage,the current $I_p$ is highest for $T_3$ and lowest for $T_1$. Therefore,the relationship between the temperatures is $T_1 < T_2 < T_3$.

For the diode,the characteristic curves are given at different temperatures. The relation between the temperatures is

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