Electromagnetic braking: a simple quantitative model
Yan Levin, Fernando L. da Silveira, Felipe B. Rizzato
Abstract
A calculation is presented which quantitatively accounts for the terminal velocity of a cylindrical magnet falling through a long copper or aluminum pipe. The experiment and the theory are a dramatic illustration of the Faraday's and Lenz's laws and are bound to capture student's attention in any electricity and magnetism course.
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