Biot–Savart law

Biot-Savart’s law, named after the French physicists Jean-Baptiste Biot and Félix Savart, can refer to two different laws of magnetostatics that allow to calculate the magnetic field generated by electric currents. The more general one, empirically verified, is also called Laplace’s first formula, from the name of the French physicist, mathematician and astronomer Pierre-Simon Laplace; the second one is instead Biot and Savart’s law for an indefinite straight wire, which can be considered a simple special case of Laplace’s law. These laws unify the magnetic field with stationary electrical phenomena.

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