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Unformatted text preview: a; Find the B f eld on the axis at the center of the solenoid b; Find the F ux through the solenoid assuming B is uniform c; Find the self inductance of the solenoid d; Find the induced emf in the solenoid when the current changes at 300 A/s [5] A toriod is made by winding 1,000 turns evenly spaced around a ferromagnetic torus having relative permeability of κ m = 100 . The iron torus has a square cross section (1 cm x 1 cm) with an inner radius of 1 cm and an outer radius of 2 cm. (a) Calculate the B f eld inside the torus if a current of 0.5 amps passes through the wire. (b) Calculate the self inductance of the toriod. (c) Calculate the stored energy when a current of 0.5 amps passes through the winding. 1...
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 Spring '08
 Jordan
 Work, Magnetic Field

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