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ERIC Number: EJ892000
Record Type: Journal
Publication Date: 2007-May
Pages: 2
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0031-921X
Torsional Oscillations with Lorentz Force
Gluck, Paul
Physics Teacher, v45 n5 p274-275 May 2007
We have built a device that uses the Lorentz force on a current-carrying wire situated in a magnetic field, F = I L x B, in order to demonstrate a slowly varying alternating current by means of an optical lever. The apparatus consists of a horseshoe magnet, a length of thin enamel-coated wire (ours was 0.3 mm thick), a signal generator, a rheostat, and a laser. Construction is illustrated in the diagram (Fig. 1).
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; 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