dorsal/arxiv
View SchemaTesting theoretical models of magnetic damping using an air track
| Authors | Ana Vidaurre, Jaime Riera, Juan A. Monsoriu, Marcos H. Gimenez |
|---|---|
| Categories | |
| ArXiv ID | physics/0702062 |
| URL | https://arxiv.org/abs/physics/0702062 |
| DOI | 10.1088/0143-0807/29/2/014 |
Abstract
Magnetic braking is a long-established application of Lenz's law. A rigorous analysis of the laws governing this problem involves solving Maxwell's equations in a time-dependent situation. Approximate models have been developed to describe different experiences related to this phenomenon. In this paper we present a new method for the analysis of the magnetic braking using a magnet fixed to the glider of an air track. The forces acting on the glider, a result of the eddy currents, can be easily observed and measured. As a consequence of the air track inclination, the glider accelerates at the beginning, although it asymptotically tends towards a uniform rectilinear movement characterized by a terminal speed. This speed depends on the interaction between the magnetic field and the conductivity properties of the air track. Compared with previous related approaches, in our experimental setup the magnet fixed to the glider produces a magnetic braking force which acts continuously, rather than over a short period of time. The experimental results satisfactorily concur with the theoretical models adapted to this configuration.
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"abstract": "Magnetic braking is a long-established application of Lenz\u0027s law. A rigorous\nanalysis of the laws governing this problem involves solving Maxwell\u0027s\nequations in a time-dependent situation. Approximate models have been developed\nto describe different experiences related to this phenomenon. In this paper we\npresent a new method for the analysis of the magnetic braking using a magnet\nfixed to the glider of an air track. The forces acting on the glider, a result\nof the eddy currents, can be easily observed and measured. As a consequence of\nthe air track inclination, the glider accelerates at the beginning, although it\nasymptotically tends towards a uniform rectilinear movement characterized by a\nterminal speed. This speed depends on the interaction between the magnetic\nfield and the conductivity properties of the air track. Compared with previous\nrelated approaches, in our experimental setup the magnet fixed to the glider\nproduces a magnetic braking force which acts continuously, rather than over a\nshort period of time. The experimental results satisfactorily concur with the\ntheoretical models adapted to this configuration.",
"arxiv_id": "physics/0702062",
"authors": [
"Ana Vidaurre",
"Jaime Riera",
"Juan A. Monsoriu",
"Marcos H. Gimenez"
],
"categories": [
"physics.ed-ph",
"physics.gen-ph"
],
"doi": "10.1088/0143-0807/29/2/014",
"title": "Testing theoretical models of magnetic damping using an air track",
"url": "https://arxiv.org/abs/physics/0702062"
},
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