Artículos de revistas
The Method of Images applied to the grounded sphere: The problem of the ground wire
Registro en:
Journal Of Electrostatics. Elsevier Science Bv, v. 70, n. 3, n. 292, n. 299, 2012.
0304-3886
WOS:000305729500008
10.1016/j.elstat.2012.03.008
Autor
de Oliveira, MT
Pagan, CJB
Institución
Resumen
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The Method of Images poses an important difficulty when used to solve the problem of a charge in the presence of a grounded conducting sphere. This arises from the fact that the sum of the inducing charge and the image charge is different from zero. As a consequence, there is a monopole field far from the system, and any ground wire physically connected to the sphere will carry an electric current, changing the initial balance of charges until a new equilibrium is reached. The approach taken in this paper assumed an infinite straight wire connecting the sphere to ground. The charge distribution over the surface of the conductors was calculated, and the results analyzed. It was shown that the thinner the wire, the lower will be its total charge, and the closer will be the calculated charge density at the surface of the sphere to the conventional solution by the Method of Images. (C) 2012 Published by Elsevier B.V. 70 3 292 299 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)