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6. We express the magnitude of the current density vector in SI units by converting the
diameter values in mils to inches (by dividing by 1000) and then converting to meters (by
multiplying by 0.0254) and finally using
J
i
A
i
R
i
D
==
=
ππ
22
4
.
For example, the gauge 14 wire with
D
= 64 mil = 0.0016 m is found to have a
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.
 Spring '08
 Any
 Physics, Current

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