How does a hall effect switch works?

A Hall effect switch operates based on the Hall effect, which occurs when a magnetic field is applied perpendicular to the flow of current in a conductor. When a magnetic field is present, it induces a voltage (Hall voltage) across the conductor, which can be detected by a sensor. This change in voltage signals the switch to either open or close a circuit, allowing it to control devices like motors or lights without any physical contact. Hall effect switches are commonly used in applications where reliable, non-contact switching is desired.