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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Use the result of Ex. 5.6 to calculate the magnetic field at the center of a uniformly charged spherical shell, of radius R and total charge Q, spinning at constant angular velocity ω.
Ex. 5.6
(a) A phonograph record carries a uniform density of "static electricity" u. If it rotates at angular velocity ω, what is the surface current density K at a distance r from the center?
(b) A uniformly charged solid sphere, of radius R and total charge Q, is centered at the origin and spinning at a constant angular velocity w about the z axis. Find the current density J at any point (r, θ, q,) within the sphere.
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