P31_097 - 97. (a) The energy density is uB = 2 Be (50 106...

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97. (a) The energy density is u B = B 2 e 2 µ 0 = (50 × 10 6 T) 2 2(4 π × 10 7 H / m) =1 . 0 × 10 3 J / m 3 . (b) The volume of the shell of thickness h is V≈ 4 πR 2 e h ,where R e is the radius of the Earth. So
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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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