9.6 Exercise 21

A 10-gauge copper wire has a cross-sectional area $A = 5.26 \text{mm}^{2}$ and carries a current of $I = 5.00 \text{A}$. The density of copper is $\rho = 8.95 \left( \text{g}/\text{cm}\right)^{3}$. One mole of copper atoms $\left(6.02 \times 10^{23} \text{atoms}\right)$ has a mass of approximately 63.50 g. What is the magnitude of the drift velocity of the electrons, assuming that each copper atom contributes one free electron to the current?