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Unformatted text preview: 36. (a) Replacing i/πR2 with J = 100 A/m2 , in Eq. 3022, we have
B= µ0 J
2 r = 1.3 × 10−7 T where r = 0.0020 m.
(b) Similarly, writing i = JπR2 in Eq. 3019 yields
B=
where r = 0.0040 m. µ0 J R 2
= 1.4 × 10−7 T
2r ...
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.
 Fall '08
 SPRUNGER
 Physics

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