2016/12/06 by G. Asti, Asti, G., R. Coı̈sson +2 · 1 citation
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Classical Physics (physics.class-ph) #Experimental and Theoretical Physics Studies #FOS: Physical sciences #Magnetic and Electromagnetic Effects #Quantum and Classical Electrodynamics #physics.class-ph
paper · pdf · doi:10.48550/arxiv.1612.01743
10 pages, 2 figures
arxiv created 2016/12/06 · openalex publication_date 2016/12/06 · arxiv updated 2016/12/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The force on electric and magnetic dipoles moving in vacuo is discussed in the general case of time-variable non-uniform fields and time-variable dipole moments, to first order in v/c and neglecting radiation reaction. Emphasis is given to the symmetry between electric and magnetic dipoles, justifying in general Ampère's equivalence principle, and showing that the difference between gilbertian and amperian dipoles (in vacuo) is only a question of interpretation. The expression for the force can be expressed in a variety of different forms, and each term of each form is susceptible of specific physical interpretations. Terms not described in the literature are pointed out. A possible experiment for verifying the (dual-Lorentz) force of an electric field on a magnetic current (and then "hidden momentum") is proposed.