An experimental observation of Faraday's law of induction

A small neodymium magnet moves with constant velocity through a coil, and the voltage induced is recorded with a computer interface. The observed voltage is compared to that predicted by simple calculations of magnetic flux using spherical polar coordinates. The close agreement between predicted and observed values combined with the experience gained in modeling the magnetic dipole field make this a very good experiment for the undergraduate Student. (C) 2002 American Association of Physics Teachers.