May 31st, 2016, 10:47 AM  #1 
Senior Member Joined: May 2012 Posts: 203 Thanks: 5  magnetism
for the question of a uniformly charged sphere spinning at a constant rate around the zaxis... along the z axis, is the net magnetic field only in the directions along the zaxis? (positive or negative depending on spin direction)

June 13th, 2016, 02:26 AM  #2 
Senior Member Joined: Apr 2014 From: Glasgow Posts: 2,133 Thanks: 719 Math Focus: Physics, mathematical modelling, numerical and computational solutions 
I'm not sure, but I managed to find the following link. Perhaps that will be of some use to you: Magnetic field of rotating sphere of charge  Physics pages 

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