Visualization of induced electric fields
A cylindrical electrolytic tank between a set of Helmholtz coils provides a classroom demonstration of induced, nonconservative electric fields. The field strength is measured by a sensor consisting of a pair of tiny spheres immersed in the liquid. The sensor signal depends on position, frequency, a...
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| Veröffentlicht in: | American journal of physics 2005-12, Vol.73 (12), p.1099-1106 |
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| container_end_page | 1106 |
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| container_issue | 12 |
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| container_title | American journal of physics |
| container_volume | 73 |
| creator | van Deursen, A. P. J. |
| description | A cylindrical electrolytic tank between a set of Helmholtz coils provides a classroom demonstration of induced, nonconservative electric fields. The field strength is measured by a sensor consisting of a pair of tiny spheres immersed in the liquid. The sensor signal depends on position, frequency, and orientation. A low resistance copper ring strongly modifies the magnetic field inside and increases the field outside; the electric field changes accordingly. A metallic ring with a small gap can be used to measure the behavior of the electric field in the vicinity of windings around a transformer core. The measured results are consistent with simple models. |
| doi_str_mv | 10.1119/1.2073987 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0002-9505 |
| ispartof | American journal of physics, 2005-12, Vol.73 (12), p.1099-1106 |
| issn | 0002-9505 1943-2909 |
| language | eng |
| recordid | cdi_scitation_primary_10_1119_1_2073987 |
| source | AIP Journals Complete |
| subjects | Copper Electric fields Experiments Science education Scientific apparatus & instruments |
| title | Visualization of induced electric fields |
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