Speed of Electric Flow
Name: Frank C.
What is the rate of electron flow in feet per seconds?
The rate of electron flow in ft/s, the "drift speed" of electrons, depends
on a variety of things. More current through a wire means more electrons
per second. This can be due to an increased number of electrons or an
increased speed. Which it is depends on how tightly packed the free
electrons are: the number of electrons per unit length of wire, or
electrons per foot. Divide the current (i.e. Coulombs per second) by the
charge of an electron (1.60x10^-19 Coulombs) to get the number of electrons
per second. Divide this by the linear density of electrons (electrons per
foot) to get the average drift speed of the electrons (feet per second).
Dr. Ken Mellendorf
Illinois Central College
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Update: June 2012