A datalogger demonstration of electromagnetic induction with a falling, oscillating andswinging magnet

We investigate the electromagnetic induction phenomenon for a falling, oscillating andswinging magnet and a coil, with the help of a datalogger. For each situation, we discussthe salient aspects of the phenomenon, with the aid of diagrams, and relate themotion of the magnet to its mathematical and g...

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Bibliographic Details
Published in:Physics education 2010-07, Vol.45 (4), p.394-401
Main Authors: Wong, Darren, Lee, Paul, See Kit Foong
Format: Article
Language:English
Subjects:
Coils
Electric potential
Electromagnetic induction
Electromotive forces
Graphical representations
Online Access:Get full text
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Summary:We investigate the electromagnetic induction phenomenon for a falling, oscillating andswinging magnet and a coil, with the help of a datalogger. For each situation, we discussthe salient aspects of the phenomenon, with the aid of diagrams, and relate themotion of the magnet to its mathematical and graphical representations. Usingvarious representation modes to guide student thinking on how the variation of themagnetic flux can be used to predict the induced electromotive force should helpstudents develop a deeper and more coherent conceptual understanding of thephenomenon.
ISSN:0031-9120
1361-6552
DOI:10.1088/0031-9120/45/4/011