Hall Effect

The Hall Effect is a phenomenon observed when a magnetic field is applied to a conductor (like a metal) carrying an electric current. This causes a voltage difference to develop across the conductor, perpendicular to both the current and the magnetic field. This effect allows for the measurement of magnetic fields and is used in various applications, such as sensors, which can detect the position and strength of magnets, and in electronic devices like Hall effect transistors. It demonstrates the interaction between electricity and magnetism in a practical, observable way.