A eletrodinâmica de Weber e seus desenvolvimentos recentes

Authors

  • André Koch Torres Assis Instituto de Física "Gleb Watahin", Unicamp, Campinas, SP. Departamento de Matemática Aplicada, lMECC, UNICAMP, Campinas, SP.

DOI:

https://doi.org/10.5902/2179460X26503

Keywords:

Eletrodinâmica de Weber, força de ampére entre elementos de corrente, tepo retardado

Abstract

We show how Maxwell's equations can be derived from Weber's electrodynamics Ampere's force between current elements can also be derived from it. We discuss experiments related to Ampere's force and to the existence or not of an electric field outside a dc current carrying wire. Finally we avalyse recent theoretical developments in Weber's electrodynamics introduction of the retarded time and the existence of terms of third and higher orders of v2/c2 in a generalized Weber's force.

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References

Assis, A. K. T. (1989 a) Physics Letters A, Volume 136, páginas 277 a 280, "Webers law and mass variation."

Assis, A. K. T. (1989 b) Foundations of Physics Letters, Volume 2, páginas 301 a 318, "On Mach's principIe."

Assis, A. K. T. (1991 a) Revista da Sociedade Brasileira de História da Ciência, Volume 5, páginas 53 a 59, "Wilhelm Eduard Weber (1804 - 1891), sua vida e sua obra."

Assis, A. K. T. (1991 b) Physics Essays, Volume 4, páginas 109 a 114, "Can a steady current generate an electric field?"

Assis, A. K. T. (1992 a) Curso de Eletrodinâmica de Weber (Notas de Física IFGW Número 5, Setor de Publicações do Instituto de Física da UNICAMP, Campinas).

Assis, A. K. T. (1992 b) Canadian Journal of Physics, Volume 70, páginas 330 a 340, "Deriving gravitation from electromagnetism."

Assis, A. K. T. (1994) Weber's Electrodynamics (Kluwer Academic Publishers, Dordrecht).

Assis, A. K. T. e Caluzi, 1. J. (1991), Physics Letters A, Volume 160, páginas 25 a 30, "A limitation of Weber’s law."

Barbour, J. B. (1989) Absolute or Relative Motion? - A study from a Machian point of view of the discovery and the structure of dynamical theories (Cambridge University Press, Cambridge).

Graneau, P. (1985) Ampere-Neumann Electrodynamics of Metais (Hadronic Press, Nonantum).

Graneau, P. ( 986) Fortschritte der Physik, Volume 34, páginas 457 a 503, "The Ampere-Neumann electrodynamics of metallic conductors."

Mach, E. (1960) The Science of Mechanics - A Critical and Historical Account of its Development (Open Court, La Salle).

Maxwell, J. C. (1954) A Treatise on Electricity and Magnetism, (Dover, New York), Volume 2, Capítulo 23.

O'Rahilly, A. (1965) Electromagnetic Theory - A Critical Examination of Fundamentals (Dover, New York), Volume 2, Capítulo 11.

Pearson, J. M. e Kilambi, A. (1974) American Journal of Physics, Volume 42, páginas 971 a 975, "Velocity-dependent nuclear forces and Weber's electrodynamics."

Phipps Jr., T. E. (1990 a) Physics Essays, Volume 3, páginas 414 a 420, "Toward modernization of Weber’s force law."

Phipps Jr., T. E. (1990 b) Apeiron, Volume 8, páginas 8 a 14, "Weber-type laws of action-at-adistance in modem physics."

Solkol'skii, A. G. e Sadovnikov, A. A. (1987) Soviet Astronomy (Astronomical Journal), Volume 31, páginas 90 a 93, "Lagrangian solutions for Weber’s law of attraction."

Weber, W. (1848) Annalen der Physik, Volume 73, página 193; tradução para o inglês em R. Taylor (editor), Scientific Memoirs, Volume 5, página 489 a 529 (Johnson's Reprint Corporation, Londres, 1966), "On the measurement of electro-dynamic forces. "

Weber, W. (1851) Annalen der Physik, Volume 82, página 337; tradução para o inglês em Philosophical Magazine, Volume 22, páginas 226 a 240 e 261 a 269 (1851), "On the measurement of electric resistance according to an absolute standard."

Weber, W. (1871) Abhandlungen der mathem.-phys. Classe der Konigl. Sachsischen Gessellschaft der Wissenschaften, Volume 10; tradução para o inglês em Philosophical Magazine, Volume 43, páginas 1 a 20 e 119 a 149 (1872), "Electrodynamic measurements relating specially to the principle of the conservation of energy."

Weber, W. (1892 - 1894) As obras completas de W. Weber podem ser encontradas nas Werke de Wilhelm Weber (Springer, Berlin): Volume 1, Akustik, Mechanik, Optik und Warmelehre, W. Voigt (editor), (1892). Volume 2, Magnetismus, E. Riecke (editor), (1892). Volume 3, Galvanismus und Elektrodynamik, primeira parte, H. Weber (editor), (1893). Volume 4,

Galvanismus und Elektrodynamik, segunda parte, H. Weber (editor), (1894). Volume 5, com E. H. Weber, Wellenlehre auf Experimente gegrundet oder uber die Wellen tropfbarer Flussigkeiten mit Anwendung auf die Schall-und Lichtwellen, E. Riecke (editor), (1893). Volume 6, Mechanik der Menschlichen Gehwerkzeuge, F. Merkel e O. Fischer (editores), (1894).

Wesley, J. P. (1990) Foundations of Physics Letters, Volume 3, páginas 443 a 469, "Weber electrodynamics, Part I: General theory, steady current effects;" ibidem, páginas 471 a 490, "Part II:Unipolar induction, Z-antenna;" ibidem, páginas 581 a 605, "Part III: Mechanics, gravitation."

Whittaker, E. T. (1973) A History of the Theories of Aether and Electricity (Humanities Press, New York), Volume 1, Capítulo 7.

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Published

1995-12-11

How to Cite

Assis, A. K. T. (1995). A eletrodinâmica de Weber e seus desenvolvimentos recentes. Ciência E Natura, 17(17), 07–16. https://doi.org/10.5902/2179460X26503

Issue

CIÊNCIA E NATURA, V. 17, N. 17, 1995

Section

Articles

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