Physics - Electrostatics Question with Solution | TestHub

A uniform copper wire of length $1\mathrm{m}$ and crosssectional area $5\times 10^{-7}{\mathrm{m}}^2$ carries a current of $1\mathrm{A}$. Assuming that there are $8\times 10^{28}$ free electrons/ ${\mathrm{m}}^3$ in copper, how long will an electron take to drift from one end of the wire to the other