Medidas de proteção em experiências didáticas com eletricidade

Abstract

The study addresses the use of educational experiments in electricity and magnetism within educational settings, with the primary goal of emphasizing the risks involved and the protective measures to be adopted during their execution. The investigative method involved the conceptual description and practical analysis of variables such as voltage, current, frequency, and exposure time to understand their correlations and effects on the human body. Based on this information, practical measures are suggested to minimize the risks associated with working with electricity, both in classrooms and in everyday life. As a practical application of the developed study, special attention is given to the educational use of Tesla coils, highlighting the differences between two distinct coil models and their specific characteristics, demonstrating that potentially hazardous equipment, when properly designed, can become harmless. Finally, the study underscores the importance of adopting best practices, such as the one-hand rule, the use of personal and collective protective equipment, and the redesign of devices to make them less dangerous. It also highlights the need to integrate these protective principles into initial teacher training programs to equip educators with the skills to safely and effectively conduct electrical experiments.