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ERIC Number: EJ892017
Record Type: Journal
Publication Date: 2007-Sep
Pages: 4
Abstractor: As Provided
Reference Count: 11
ISSN: ISSN-0031-921X
Strong Little Magnets
Moloney, Michael J.
Physics Teacher, v45 n6 p352-355 Sep 2007
Did you know that some strong little cylindrical magnets available in local hardware stores can have an effective circumferential current of 2500 A? This intriguing information can be obtained by hanging a pair of magnets at the center of a coil, as shown in Fig. 1, and measuring the oscillation frequency as a function of coil current.
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