Abstract
This chapter concerns a little-known, but crucially important phenomenon: when a conductor moves in a magnetic field, it nearly always carries, INSIDE, a space charge. And the electric field of that space charge cancels part, or even all of, the v × B field.1
Our first Example will be the Faraday disk, which is the standard model for natural dynamos in convecting conducting fluids, that we shall discuss at length in Chapters 10 to 14. Our second Example will be the solid rotating conducting sphere, which has mystified many an author, and which concerns the magnetic field of the Earth (Chapter 9).
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References
See P. Lorrain, Charges in moving conductors, Eur. Jour. Physics 11, 94–98 (1990); but the value of \( \tilde Q_f\) deduced there is incorrect. See Redžić (2001), P. Lorrain (2001), and below.
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(2006). Charges Inside Moving Conductors. In: Magneto-Fluid Dynamics. Astronomy and Astrophysics Library. Springer, New York, NY. https://doi.org/10.1007/978-0-387-47290-4_7
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DOI: https://doi.org/10.1007/978-0-387-47290-4_7
Publisher Name: Springer, New York, NY
Print ISBN: 978-0-387-33542-1
Online ISBN: 978-0-387-47290-4
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