Didactic Case – Direct current machine in the teaching of electromagnetism to high school

This article proposes the construction of a didactic case using a direct current machine to assist the teaching-learning process in the area of electromagnetism for high school, both in the disciplines of physics and in electrical machines. The developed prototype is used in the practical classes of electromagnetism and electrical machines of the technical course in Industrial Automation and Electromechanics, both integrated to high school. The case was built using a direct current machine similar to domestic two-speed blenders. The windings are connected to terminals to facilitate circuit connections through banana connectors. Electrical circuits, voltage and electric current, Faraday’s law of induction and some functional characteristics are some topics discussed, from the perspective of the Theory of Meaningful Learning, with the support of this case.

Keywords
Electromagnetism; Faraday’s law; dc machine; high school