We present an analytical study of magnetic damping. In particular, we investigate the dynamics of a cylindrical neodymium magnet as it moves through a conducting tube. Owing to the very high degree of uniformity of the magnetization for neodymium magnets, we are able to provide completely analytical results for the electromotive force generated in the pipe and the consequent retarding force. Our analytical expressions are shown to have excellent agreement with experimental observations.
Copyright © 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Irvine, Benjamin, Matthew Kemnetz, Asim Gangopadhyaya, and Thomas Ruubel. “Magnet Traveling through a Conducting Pipe: A Variation on the Analytical Approach.” American Journal of Physics 82, no. 4 (April 2014): 273–79. doi:10.1119/1.4864278 and may be found at http://dx.doi.org/10.1119/1.4864278.