It was hard to believe for a very long time that there existed a relationship between electricity and magnetism! Hans Christian Oersted’s observation made a discovery demonstrating a close relationship between the two. Oersted observed a pivoted magnet was deflected when kept in the neighbourhood of a wire carrying electric current.
The work of Oersted thus demonstrated that magnetic effects could be produced by moving electrical charges. The branch of physics which deals with magnetism due to the electric current is called electromagnetism. Let’s find out more in the following sections.
- Ampere’s Circuital Law
- Magnetic Field Due to a Current Element, Biot-Savart Law
- Magnetic Force and Magnetic Field
- Motion in Combined Electric and Magnetic Field
- Moving Coil Galvanometer
- The Solenoid and the Toroid
- Torque on Current Loop, Magnetic Dipole