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69. Since the radius is
R
=0
.
0013 m, then the
i
= 50 A produces
B
=
µ
0
i
2
πR
=0
.
0077 T
at the edge of the wire. The three equations, Eq. 306, Eq. 3019 and Eq. 3022, agree at this point.
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 Fall '08
 SPRUNGER
 Physics

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