(b) At
r = a
, the magnetic field strength is
µµ
0
22
0
2
2
i
ab
a
i
a
π
π
−
−
F
H
G
I
K
J
=
c
h
.
At
rb
Br b
=−
=
,
∝
0
. Finally, for
b
= 0
B
i
a
r
r
ir
a
==
0
2
2
0
2
ππ
which agrees with Eq. 2920.
(c) The field is zero for
r < b
and is equal to Eq. 2917 for
r > a
, so this along with the
result of part (a) provides a determination of
B
over the full range of values. The graph
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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

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