ERIC Number: EJ1016063
Record Type: Journal
Publication Date: 2013-Sep
Reference Count: N/A
A Simple Demonstration of the Effect of Eddy Currents
Sapple, Paul; Reilly, Lee M.
School Science Review, v95 n350 p19 Sep 2013
Demonstrating that a moving magnet can induce an electromagnetic force by causing an electric current in a conducting material can be shown by a number of methods. A common method is dropping a magnet down a copper pipe and showing that the rate of fall is much slower than expected owing to the induced electric current in the copper pipe. This "Science Note" gives a simpler and more visual demonstration involving a nonferrous frying pan and two metal discs of similar size, one magnetic and the other not.
Descriptors: Science Instruction, Magnets, Energy, Scientific Concepts, Demonstrations (Educational)
Association for Science Education. College Lane Hatfield, Herts, AL10 9AA, UK. Tel: +44-1-707-283000; Fax: +44-1-707-266532; e-mail: firstname.lastname@example.org; Web site: http://www.ase.org.uk
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A