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|Abstract:||Most familiar applications of Poynting's theorem concern stationary circuits or circuit elements. Here, we apply Poynting's theorem to the homopolar generator, a conductor moving in a background magnetic field. We show that the electrical power produced by the homopolar generator equals the power lost from the deceleration of the rotating Faraday disk due to magnetic braking and review the way that magnetic braking arises within Poynting's theorem.|
|Citation:||Chyba, Christopher F, Hand, Kevin P, Thomas, Paul J. (2015). Energy conservation and Poynting's theorem in the homopolar generator. American Journal of Physics, 83 (1), 72 - 75. doi:10.1119/1.4895389|
|Pages:||72 - 75|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||American Journal of Physics|
|Version:||Final published version. Article is made available in OAR by the publisher's permission or policy.|
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