17. A sphere of radius R has a charge Q uniformly distributed over its volume. The sphere spins about a diameter at angular velocity w. (a) Calculate the magnetic field at the center of the sphere. (b) Calculate the magnetic field on the axis of rotation at a large distance from the sphere. What is the magnetic dipole moment?

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17. A sphere of radius R has a charge Q uniformly distributed over its volume. The
sphere spins about a diameter at angular velocity w.
(a) Calculate the magnetic field at the center of the sphere.
(b) Calculate the magnetic field on the axis of rotation at a large distance from the
sphere. What is the magnetic dipole moment?
Transcribed Image Text:17. A sphere of radius R has a charge Q uniformly distributed over its volume. The sphere spins about a diameter at angular velocity w. (a) Calculate the magnetic field at the center of the sphere. (b) Calculate the magnetic field on the axis of rotation at a large distance from the sphere. What is the magnetic dipole moment?
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