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| Autor/inn/en | Jacobs, R.; Salazar, A. de; Nassar, A. |
|---|---|
| Titel | New experimental method of visualizing the electric field due to surface charges on circuit elements. |
| Quelle | In: American journal of physics, 78 (2010) 12, S. 1432-1433
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | online; gedruckt; Zeitschriftenaufsatz |
| ISSN | 0002-9505; 1943-2909 |
| DOI | 10.1119/1.3480576 |
| Schlagwörter | Experiment; Elektrische Ladung; Oberfläche; Physik; Stromkreis |
| Abstract | Although static surface charges on circuit elements are of enormous interest, recent papers and textbooks have only discussed the problem theoretically using analytical or numerical approaches. The only well-known experimental method to visualize the structure of electric fields around circuit elements was reported by Jefimenko almost half a century ago. In our paper, we report on a simple method to visualize the electric field produced by static surface charges on current-carrying circuit elements. Our method uses a mixture of PTFE (Teflon) sealant and mineral oil, a copper wire placed in the mixture's container, and two 6 kV power supplies. We believe that our new method can be used directly in the classroom. © 2010 American Association of Physics Teachers. |
| Erfasst von | Arbeitsgruppe Didaktik der Physik, Universität Osnabrück |
| Update | 2011/1 |
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