Displacement Current And The Mysterious Top

Description
Concept and origin of Displacement current is explained and Maxwell's equation is introduced.Magnetic field between plates is calculated. Synchronous and induction motors are explained for three phase current. Example of tools which use induction motor are table saw and landmower. A bar magnet, a conducting sphere and ring are placed on three phase motor and the effect is shown.The effect is explained using eddy current.The mystery of a spinning top rotating continuously without any apparent support is explained .

Prof. Walter Lewin, 8.02 Electricity and Magnetism, Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed June 21, 2011). License: Creative Commons BY-NC-SA: http://ocw.mit.edu/terms/#cc