The Hall Effect is a phenomenon observed when a magnetic field is applied perpendicular to the flow of electric current in a conductor. This interaction causes a voltage, known as the Hall voltage, to develop across the conductor, perpendicular to both the current and the magnetic field. This effect is used to measure magnetic fields and is essential in various applications, including sensors and transducers. Discovered by Edwin Hall in 1879, the Hall Effect has significant implications in electronics and physics. It helps in understanding the behavior of charge carriers, such as electrons and holes, in materials. Devices like Hall effect sensors utilize this principle for precise measurements in automotive and industrial applications.