P31_062 - and V is the volume. Thus i = r 2 u B V L = v u u...

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62. The magnetic energy stored in the toroid is given by U B = 1 2 Li 2 ,where L is its inductance and i is the current. By Eq. 31-56, the energy is also given by U B = u B V ,where u B is the average energy density
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Unformatted text preview: and V is the volume. Thus i = r 2 u B V L = v u u t 2 70 . 0 J / m 3 (0 . 0200 m 3 ) 90 . 10 3 H = 5 . 58 A ....
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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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