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Galilean Electromagnetism was discovered thirty years ago by Levy-Leblond &Le Bellac. However, these authors only explored the consequences for the fieldsand not for the potentials. Following De Montigny & al., we show that theCoulomb gauge condition is the magnetic limit of the Lorenz gauge conditionwhereas the Lorenz gauge condition applies in the electric limit ofL\'{e}vy-Leblond & Le Bellac. Contrary to De Montigny & al. who used Galileantensor calculus, we use orders of magnitude based on physical motivations inour derivation.Comment: PDF versio

Lorenz or Coulomb in Galilean electromagnetism?