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Unformatted text preview: 35. For r < a,
B (r ) = µ0 i enc
µ0
=
2πr
2πr r J (r)2πr dr =
0 µ0
2π r J0
0 µ0 J0 r2
r
2πr dr =
.
a
3a ...
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 Fall '08
 SPRUNGER
 Physics

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