Chapter 27, Problem 27.82CP

(a)

To determine

To show: The resistivity is given approximately by the expression $\rho ={\rho }_0{e}^{\alpha \left(T-T_0\right)}$.

(b)

To determine

To show: The resistivity is given approximately by the expression $\rho ={\rho }_0\left[1+\alpha \left(T-T_0\right)\right]$.