P30_048 - i/R a = 2 R a R b = 4 . (b) The ratio of their...

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48. (a) We set z = 0 in Eq. 30-28 (which is equivalent using to Eq. 30-12 multiplied by the number of loops). Thus, B (0) i/R . Since case b has two loops, B b B a = 2 i/R b
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Unformatted text preview: i/R a = 2 R a R b = 4 . (b) The ratio of their magnetic dipole moments is µ b µ a = 2 iA b iA a = 2 R 2 b R 2 a = 2 µ 1 2 ¶ 2 = 1 2 ....
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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.

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