A copper wire has a circular cross section with a radius of 5.00 mm. The equation for drift velocity is given below. vd = I nqA
(a) If the wire carries a current of 3.60 A, find the drift speed of the electrons in the wire. (n = 8.46 1028 electrons/m) m/s
(b) All other things being equal, what happens to the drift speed in wires made of metal having a larger number of conduction electrons per atom than copper? Explain.