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ERIC Number: EJ859376
Record Type: Journal
Publication Date: 2009-Oct
Pages: 3
Abstractor: As Provided
Reference Count: 4
ISSN: ISSN-0031-921X
Interacting Compasses
Riveros, Hector G.; Betancourt, Julian
Physics Teacher, v47 n7 p460-462 Oct 2009
The use of multiple compasses to map and visualize magnetic fields is well-known. The magnetic field exerts a torque on the compasses aligning them along the lines of force. Some science museums show the field of a magnet using a table with many compasses in a closely packed arrangement. However, the very interesting interactions that occur between the compasses themselves are frequently neglected. In this paper we describe demonstrations, using arrays of compasses, that show these interactions and model magnetic domains in ferromagnetic materials.
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: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A