English

Mansuripur's Paradox

Classical Physics 2015-06-15 v2

Abstract

A recent article claims that the Lorentz force law is incompatible with special relativity. We discuss the "paradox" on which this claim is based. The resolution depends on whether one assumes a "Gilbert" model for the magnetic dipole (separated monopoles) or the standard "Ampere" model (current loop). The former was presented in these pages many years ago; the latter requires the inclusion of "hidden momentum."

Keywords

Cite

@article{arxiv.1303.0732,
  title  = {Mansuripur's Paradox},
  author = {David J. Griffiths and V. Hnizdo},
  journal= {arXiv preprint arXiv:1303.0732},
  year   = {2015}
}

Comments

6 pages. Version accepted by Am. J. Phys. arXiv admin note: text overlap with arXiv:1205.4646

R2 v1 2026-06-21T23:36:13.508Z