For a wire has a circular cross section with a radius of 1.23mm.

a. if the wire carries a current of 3.70a, find the drift speed ofthe electrons in the wire.
b. all other things being equal, whathappens to the drift speed in wires made of metal having a largenumber of conduction electrons per atom than copper?

Decrease

Explanation:

I = Current = 3.7 A

e = Charge of electron =

n = Conduction electron density in copper =

= Drift velocity of electrons

r = Radius = 1.23 mm

Current is given by

The drift speed of the electrons is

From the equation we can see the following

So, if the number of conduction electrons per atom is higher than that of copper the drift velocity will decrease.

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