One week after Orsted discovered that a compass needle was affected by electric current, this man published a paper explaining the phenomenon. A law named after him states that the path integral of a 
One week after Orsted discovered that a compass needle was affected by electric current, this man published a paper explaining the phenomenon. A law named after him states that the path integral of a magnetic field equals the permeability times the electrical current in the loop. Name this early nineteenth century Frenchman after whom the SI unit of electric current is named.
One week after Orsted discovered that a compass needle was affected by electric current, this man published a paper explaining the phenomenon.