SonOfTheGods Posted March 15, 2014 copper pipe and neodymium magnet When a neodymium magnet is dropped down a conducting copper pipe, it feels a resistive force. The falling magnet induces a current in the copper pipe and, by Lenz’s Law, the current creates a magnetic field that opposes the changing field of the falling magnet. Thus, the magnet is “repelled” and falls more slowly. 3 Share this post Link to post Share on other sites
SonOfTheGods Posted March 15, 2014 http://en.wikipedia.org/wiki/Lenz%27s_law An induced electromotive force (emf) always gives rise to a current whose magnetic field opposes the original change in magnetic flux. 1 Share this post Link to post Share on other sites
Marblehead Posted March 15, 2014 (edited) Well, I know I still can't levitate. Damn near broke my other hip trying! Edited March 15, 2014 by Marblehead 1 Share this post Link to post Share on other sites
silent thunder Posted March 16, 2014 That is tasty! 1 Share this post Link to post Share on other sites
