Abstract : The Ampère law is useful to calculate the magnetostatic field in the cases of distributions of current with high degree of symmetry. Nevertheless the magnetic field produced by a thin straight wire carrying a current I requires the Biot–Savart law and the use of the Ampère law leads to a mistake. A didactical formulation of the Ampère law is proposed to prevent misinterpretations.
Dominique Barchiesi. Didactical formulation of the Ampère law. European Journal of Physics, European Physical Society, 2014, 35, pp.038001. ⟨10.1088/0143-0807/35/3/038001⟩. ⟨hal-01441512⟩