ERIC Number: EJ984357
Record Type: Journal
Publication Date: 2012-May
Pages: 11
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0143-0807
EISSN: N/A
Available Date: N/A
A Laboratory Activity on the Eddy Current Brake
Molina-Bolivar, J. A.; Abella-Palacios, A. J.
European Journal of Physics, v33 n3 p697-707 May 2012
The aim of this paper is to introduce a simple and low-cost experimental setup that can be used to study the eddy current brake, which considers the motion of a sliding magnet on an inclined conducting plane in terms of basic physical principles. We present a set of quantitative experiments performed to study the influence of the geometrical and electromagnetic properties of the magnet on the magnetic drag force. This video-based experiment is ideal for the study of kinematic graphs and the application of Newton's laws. Video motion analysis software enables students to make precise measurements of the magnet's position at incremental times during its motion, thus allowing them to quantify electromagnetic induction phenomena. The equipment needed for this experiment and data collection software are present in most physics teaching laboratories or are inexpensive and available. (Contains 4 tables and 8 figures.)
Descriptors: Physics, Science Instruction, College Science, Undergraduate Students, Motion, Magnets, Laboratory Experiments, Science Experiments, Computer Software, Video Technology, Graphs, Laboratory Equipment, Science Equipment, Scientific Principles, Science Activities
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A