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(A) The resistance of a metallic conductor is given by the formula $R = \frac{ml}{ne^2 	au A}$.As the temperature increases,the thermal velocity of t

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True

Vedclass · Answer

(A) The resistance of a metallic conductor is given by the formula $R = \frac{ml}{ne^2 	au A}$.As the temperature increases,the thermal velocity of the free electrons increases,which leads to more frequent collisions between electrons and ions.This results in a decrease in the relaxation time $(	au)$.Since $R \propto \frac{1}{	au}$,a decrease in relaxation time leads to an increase in the resistance of the conductor.Therefore,the statement is true.

Resistance of a conductor increases with the increase in temperature.

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