PHY2061
R. D. Field
Department of Physics
chp33_6.doc
University of Florida
The Curl of the Magnetic Field
Ampere’s Law:
The line integral of the magnetic field around any closed path C is equal
to
µ
0
times the current intercepted by the area spanning the path:
∫
=
⋅
C
enclosed
I
r
d
B
0
µ
r
.
The current enclosed by the closed curve C is given by the integral over
the surface S (bounded by the curve C) of the current density J as follows:
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 Spring '08
 FRY
 Physics, Current, Magnetic Field

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