Literaturnachweis - Detailanzeige
| Autor/inn/en | Ladera, C. L.; Donoso, G. |
|---|---|
| Titel | Unveiling the physics of the Thomson jumping ring. |
| Quelle | In: American journal of physics, 83 (2015) 4, S. 341-348
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | online; gedruckt; Zeitschriftenaufsatz |
| ISSN | 0002-9505; 1943-2909 |
| DOI | 10.1119/1.4902891 |
| Schlagwörter | Elektromagnetische Induktion; Physik; Physikunterricht; Thomsonscher Ringversuch |
| Abstract | We present a new theoretical model and validating experiments that unveil the rich physics behind the flight of the conductive ring in the Thomson experiment-physics that is hard to see because of the rapid motion. The electrodynamics of the flying ring exhibits interesting features, e.g., varying mutual inductance between the ring and the electromagnet. The dependences of the ring electrodynamics upon time and position as the ring travels upward are conveniently separated and determined to obtain a comprehensive view of the ring motion. We introduce a low-cost jumping ring setup that incorporates pickup coils connected in opposition, allowing us to scrutinize the ring electrodynamics and confirm our theoretical model with good accuracy. This work is within the reach of senior students of science or engineering, and it can be implemented either as a teaching laboratory experiment or as an open-ended project. 2015 American Association of Physics Teachers. |
| Erfasst von | Arbeitsgruppe Didaktik der Physik, Universität Osnabrück |
| Update | 2015/4 |
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