Interpreting Faraday's law of induction has been a challenge for students, because this law involves abstract and sophisticated concepts such as the magnetic flux, given by a surface integral, and the electromotive force, given by a line integral. Besides that, Faraday's law is not clear with respect to the sources of the different fields of force, electric and magnetic, involved simultaneously in the phenomenon of induction. We discuss Faraday's electromagnetic induction through the magnetic and electric fields of point-charges in a quasistatic regime. From this perspective, we show that the results of Faraday's experiments that led to the discovery of electromagnetic induction can be understood in terms of the electric acceleration and velocity fields of point charges.
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October 2019
PAPERS|
October 01 2019
Faraday induction from point-charge fields
José Arnaldo Redinz
José Arnaldo Redinz
a)
Departamento de Física, Universidade Federal de Viçosa
, 36576-292 Viçosa, MG, Brazil
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Electronic mail: [email protected]
Am. J. Phys. 87, 824–828 (2019)
Article history
Received:
March 29 2019
Accepted:
August 16 2019
Citation
José Arnaldo Redinz; Faraday induction from point-charge fields. Am. J. Phys. 1 October 2019; 87 (10): 824–828. https://doi.org/10.1119/1.5124977
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