1 22.7 Source of magnetic field due to current The Oersted’s discovery in 1819 indicates an electric current can act as a source of magnetic field. Biot.
Biot-Savart Law Biot-Savart law: The constant o is called the permeability of free space o = 4 x 10 -7 T. m / A.
RC, RLC circuit and Magnetic field
