1975•American Journal of PhysicsRequires access

Fields of moving charges

N. R. Arista, A. López

Abstract

It is shown that one can view the magnetic interaction between a moving charged particle and a current-carrying wire, as originating in the electric force between charges, by performing a Lorentz transformation to a system in which the charge carriers are at rest. This is suggested as an alternative to the discussion in Vol. II of the Berkeley Physics Course. The fields of the wire as seen by an observer moving with the test particle are used to discuss Faraday’s law in differential form for a nonstationary case.

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Key concepts: Physics, Faraday cage, Lorentz force, Lorentz transformation, Observer (physics), Classical mechanics, Test particle, Charged particle