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ERIC Number: EJ1172119
Record Type: Journal
Publication Date: 2018-Mar
Pages: 5
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0031-921X
Thomson's Jumping Ring over a Long Coil
Jeffery, Rondo N.; Amiri, Farhang
Physics Teacher, v56 n3 p176-180 Mar 2018
The classic jumping ring apparatus consists of a coil with an iron core that extends out of the coil. A copper or aluminum ring placed over the iron core jumps upward when AC power is applied to the coil. In this paper we will examine a modified design of the jumping ring apparatus, called the "long-coil design." It allows the ring to jump upward or downward, depending on the starting position of the ring. These features shed significant light on the study of the force that causes the ring to jump.
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://aapt.scitation.org/journal/pte
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A