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OL PH 223 30:1-3

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by

Richard Datwyler

on 29 February 2016

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Transcript of OL PH 223 30:1-3

Electrons flow through a 1.6 mm diameter aluminum wire at 2.0 X 10^-4 m/s. How many electrons move through a cross section of the wire each day?
A 2.0 x 10^-3 V/m electric field creates a 3.5 x 10^17 electron/s current in a 1.0 mm diameter aluminum wire. What are the drift speed and the mean time between collisions for electrons in this wire?
An aluminum wire consists of the three segments shown here. The current in the top segment is 10 A. for each of these three segments find the, Current, Current density, E field
Drift velocity, Electron current.
2mm
1mm
2 mm
10 A
1 = 3 2
I
v
i
E
J
D
10 10

=
=
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