Electron Path Length in Air
what is the distance in mm traveled by an electron in air?
There is not an easy answer. The average distance depends upon the velocity
of the electron, which can depend upon many other variables, the density of
the air, the detailed composition of the air (e.g. humidity). For "static
electricity" the distance traveled may be a fraction of a mm. For a lightning
bolt it may be hundreds of meters.
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Update: June 2012