ampère's law

الإنجليزية - الإنجليزية

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Law of electromagnetism that describes mathematically the magnetic force between two electric currents. It was named after A.-M. Ampère, who discovered that such forces exist. If two currents flow in the same direction, the force between the two wires is attractive; if they flow in opposite directions, the force is repulsive. In each case, the force is directly proportional to the currents