Methodological notes

Interaction of two charged conducting balls: theory and experiment

Department of Physics, Korolenko Glazov State Pedagogical Institute, ul. Pervomaiskaya 25, Glazov, 427600, Russian Federation

Three possible settings are considered for the question of two interacting charged conducting balls: (1) both balls are kept at constant and equal potentials; (2) one ball is charged and isolated, the other is kept at a constant potential with the same sign as the first, and (3) both balls are like charged and isolated. It is shown that fundamentally different problems generally arise here: whereas in the first case the balls always repel, in the second and third cases fairly wide ranges of radius and charge ratios can always be found in which the balls attract each other at close distances. These ranges are identified in the paper. The results are presented of experiments that demonstrate both the repulsion and attraction of like-charged balls. Theory and experiment show satisfactory agreement, both qualitatively and quantitatively.

Fulltext is available at IOP
PACS: 01.50.My, 01.55.+b, 41.20.Cv (all)
DOI: 10.3367/UFNe.0180.201010f.1109
Citation: Saranin V A, Mayer V V "Interaction of two charged conducting balls: theory and experiment" Phys. Usp. 53 1067–1074 (2010)
BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Оригинал: Саранин В А, Майер В В «Теоретические и экспериментальные исследования взаимодействия двух проводящих заряженных шаров» УФН 180 1109–1117 (2010); DOI: 10.3367/UFNr.0180.201010f.1109

References (9) Cited by (12) Similar articles (20) ↓

  1. V.A. Saranin “On the interaction of two electrically charged conducting balls42 385–390 (1999)
  2. V.A. Saranin “Electric field strength of charged conducting balls and the breakdown of the air gap between them45 1287–1292 (2002)
  3. V.A. Saranin “Electrostatic oscillators55 700–708 (2012)
  4. V.V. Mayer, E.I. Varaksina, V.A. Saranin “Simple lecture demonstrations of instability and self-organization57 1130–1135 (2014)
  5. V.V. Mayer, E.I. Varaksina, V.A. Saranin “A drop jumps to weightlessness: a lecture demo60 108–113 (2017)
  6. R.Z. Muratov “Some useful correspondences in classical magnetostatics, and the multipole representations of the magnetic potential of an ellipsoid55 919–928 (2012)
  7. M.Ya. Agre “Multipole expansions in magnetostatics54 167–180 (2011)
  8. G.N. Gaidukov, I.N. Gorbatyy “Electromagnetic analogies in electro- and magnetostatics problems62 413–420 (2019)
  9. M.L. Martinson, A.V. Nedospasov “On the charge density inside a conductor carrying a current36 (1) 23–24 (1993)
  10. M.A. Miller “Charge and current electrostatics. Nonstationary sources of static fields27 69–75 (1984)
  11. V.M. Ponizovskii “Free suspension of diamagnetic bodies in a Constant magnetic field13 289–290 (1970)
  12. G.S. Golitsyn “Demonstrativeness of using energy rather than mass as the unit of measure for a number of problems in physics, mechanics, and geophysics51 723–725 (2008)
  13. V.P. Kazantsev “An example illustrating the potentiality and peculiarities of a variational approach to electrostatic problems45 325–330 (2002)
  14. V.V. Popkov, E.V. Shipitsyn “Golden section in the Carnot cycle43 1155–1157 (2000)
  15. L.B. Okun, K.G. Selivanov, V.L. Telegdi “Gravitation, photons, clocks42 1045–1050 (1999)
  16. Kh.M. Karakhanova, L.M. Kovyazin, V.A. Trofimov “Demonstration of the law of electromagnetic induction33 (3) 253–254 (1990)
  17. L.A. Ageev, M.G. Kuleva, R.G. Yarovaya “A simple demonstration experiment in nonlinear optics (Thermal defocusing of laser radiation)30 284–285 (1987)
  18. G.A. Markov “Demonstration of the self-focusing of plasma waves26 927–928 (1983)
  19. G.S. Egorov, N.S. Stepanov “Simulation of a gravitational lens in a lecture demonstration25 705–707 (1982)
  20. G.S. Egorov, S.N. Mensov, N.S. Stepanov “Lecture demonstrations on the interference of partially coherent light22 757–759 (1979)

The list is formed automatically.

© 1918–2020 Uspekhi Fizicheskikh Nauk
Email: Editorial office contacts About the journal Terms and conditions