hw8_p5406_s05 - magnet with fixed current sets up an...

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HW 8 Phys5406 S05 due 3/31/05 1)JDJ 5.21 2) Suppose a long solenoid of n turns/length and current I. Consider a screw driver (ap- proximated as a cylinder with radius << solenoid radius) of material μ partially inside the solenoid and partially outside at one end. What is the approximate force/area trying to pull the screw driver into the solenoid? 3)Prove the equation following JDJ 5-149. Use it to do the following problem. An electro-
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Unformatted text preview: magnet with fixed current sets up an approximately uniform field B e x between its poles. A slab of permeability μ and cross sectional area A is inserted so that it is partially into the field in the z direction. It can only move in the z direction. What is the approximate force on the slab? 1...
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This note was uploaded on 12/24/2011 for the course PHYS 5406 taught by Professor Blecher during the Spring '10 term at Virginia Tech.

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