In an experiment, the resistance of a material is plotted as a function of temperature (in some range). As shown in the figure, it is a straight line. One may conclude that:
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it just concludes that when temperature increases then the average kinetic energy of the electrons in the conducting material increases so the resistance also increases
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Since, the resistance of the material is plotted as a function of temperature which is a straight line. We can conclude that :
By comparing it with straight line equation,
y = - mx + c [ Slope is negative here]
LnR(T) = - m(1/T^2) + c
LnR(T) = - m/T^2 + C
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