dorsal/arxiv
View SchemaDynamics of a liquid dielectric attracted by a cylindrical capacitor
| Authors | Rafael Nardi, Nivaldo A. Lemos |
|---|---|
| Categories | |
| ArXiv ID | physics/0612029 |
| URL | https://arxiv.org/abs/physics/0612029 |
| DOI | 10.1088/0143-0807/28/1/014 |
Abstract
The dynamics of a liquid dielectric attracted by a vertical cylindrical capacitor is studied. Contrary to what might be expected from the standard calculation of the force exerted by the capacitor, the motion of the dielectric is different depending on whether the charge or the voltage of the capacitor is held constant. The problem turns out to be an unconventional example of dynamics of a system with variable mass, whose velocity can, in certain circumstances, suffer abrupt changes. Under the hypothesis that the voltage remains constant the motion is described in qualitative and quantitative details, and a very brief qualitative discussion is made of the constant charge case.
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"abstract": "The dynamics of a liquid dielectric attracted by a vertical cylindrical\ncapacitor is studied. Contrary to what might be expected from the standard\ncalculation of the force exerted by the capacitor, the motion of the dielectric\nis different depending on whether the charge or the voltage of the capacitor is\nheld constant. The problem turns out to be an unconventional example of\ndynamics of a system with variable mass, whose velocity can, in certain\ncircumstances, suffer abrupt changes. Under the hypothesis that the voltage\nremains constant the motion is described in qualitative and quantitative\ndetails, and a very brief qualitative discussion is made of the constant charge\ncase.",
"arxiv_id": "physics/0612029",
"authors": [
"Rafael Nardi",
"Nivaldo A. Lemos"
],
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"doi": "10.1088/0143-0807/28/1/014",
"title": "Dynamics of a liquid dielectric attracted by a cylindrical capacitor",
"url": "https://arxiv.org/abs/physics/0612029"
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