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ERIC Number: EJ931171
Record Type: Journal
Publication Date: 2010-Sep
Pages: 2
Abstractor: ERIC
ISSN: ISSN-0031-9120
A Classroom Demonstration of Wireless Energy Transfer
Luczak, Matthew; Baker, Blane
Physics Education, v45 n5 p453-454 Sep 2010
Resonance is one of the recurring themes in physics and, as such, is important in research applications and in explaining many everyday phenomena. Students often encounter resonance during studies of simple harmonic motion, sound, mechanical waves and AC circuits. Alternatively, or in addition, resonance can be demonstrated in the context of magnetic (and mutual) induction. Previously, Mak incorporated two LC resonators to show transfer of energy between the two via electromagnetic induction and electromagnetic radiation. In this article, by contrast, one coil is driven at varying frequencies while a second one experiences magnetic induction as part of an LC circuit. Magnetic induction is discussed, followed by a description of the demonstration. (Contains 1 figure.)
Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A