hw1_p5406_s10 - HW 1 Phys5406 S10 due 1/28/10 1) In class...

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Unformatted text preview: HW 1 Phys5406 S10 due 1/28/10 1) In class we calculated the B field on the axis of a circular loop of radius R carrying current I. Now everywhere on the axis there is no current, so that the field is derivable from a scalar potential, . Calculate applicable for all points on the axis. Your answer should contain a seemingly arbitrary integration constant. However, for points very far from the loop, reduces to that from only a magnetic moment term. This allows evaluation of the integration constant; what is it? 2) A sphere of radius R has a uniform volume charge density . It rotates about a di- ameter with constant angular velocity e z . a)What is the magnetic moment? b) Lets specialize this problem to the proton. Assume mass M and uniform mass density. The proton is a spin 1/2 particle. If its center of mass is at rest its angular momentum along the z axis is h/ 2. Calculate the magnetic moment in units of the nuclear magneton, e h 2 M , and compare with the result in the literature., and compare with the result in the literature....
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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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hw1_p5406_s10 - HW 1 Phys5406 S10 due 1/28/10 1) In class...

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