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Unformatted text preview: PHY 3323 December 7, 2009 Exam #3 ` ` , o o o ` . Xenophon, Anabasis, IV.7 (1) Consider a circular loop of radius R which lies in the x y plane. Suppose that the loop carries a current I directed counterclockwise as viewed from above. a) Write an explicit integral expression for the x component of the magnetic field at position vector r = (0 , y, z ). (10 points) b) Write an explicit integral expression for the y component of the magnetic field at position vector r = (0 , y, z ). (10 points) c) Write an explicit integral expression for the z component of the magnetic field at position vector r = (0 , y, z ). (10 points) d) Evaluate the integral for B x in part a). If you could not get the integral at least evaluate the leading multipole contribution to the x component. (5 points) (2) Consider a spherical shell of radius...
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 Spring '08
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 Current, Magnetism

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