The drift speed in a copper wire is 7 × 10−5 m/s for a typical electron current. Calculate the magnitude of the electric field E inside the copper wire. The mobility of mobile electrons in copper is...

The drift speed in a copper wire is 7 × 10−5 m/s for a typical electron current. Calculate the magnitude of the electric field

E inside the copper wire. The mobility of mobile electrons in copper is 4.5 × 10−3 (m/s)/(N/C). (Note that though the

electric field in the wire is very small, it is adequate to push a sizable electron current through the copper wire.)