Electromagnetic Magic: The Relativistically Rotating Disk
Abstract
A closed form analytic solution is found for the electromagnetic field of the charged uniformly rotating conducting disk for all values of the tip speed v up to c. For v=c it becomes the Magic field of the Kerr-Newman black hole with G set to zero. The field energy, field angular momentum and gyromagnetic ratio are calculated and compared with those of the electron. A new mathematical expression that sums products of 3 Legendre functions each of a different argument, is demonstrated.
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