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We have already seen that a point charge, which only has an electrostatic field at rest, is surrounded by electric and magnetic fields when in motion ((8.2.46) and (8.2.47)) whose strength depends on the speed, and conclude from this that E and B cannot simply be supplemented to four-vectors separately.

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Covariant Electrodynamics

  • 章节

  • 发表日期：

    2025年

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  • Dietmar Petrascheck,
  • Franz Schwabl

摘要

We have already seen that a point charge, which only has an electrostatic field at rest, is surrounded by electric and magnetic fields when in motion ((8.2.46) and (8.2.47)) whose strength depends on the speed, and conclude from this that E and B cannot simply be supplemented to four-vectors separately.