What is the principle of Hall effect?

The Hall effect principle is named for physicist Edwin Hall. In 1879 he discovered that when a conductor or semiconductor with current flowing in one direction was introduced perpendicular to a magnetic field a voltage could be measured at right angles to the current path.

Also know, what is Hall effect in semiconductors?

The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and to an applied magnetic field perpendicular to the current. It was discovered by Edwin Hall in 1879.

What is the use of Hall effect?

The Hall effect is relevant to a variety of sensor applications; devices based on this relatively simple relationship between current, magnetic field, and voltage can be used to measure position, speed, and magnetic field strength.

What is a Hall sensor on a motor?

A Halleffect sensor stationed near the rotor (rotating part of the motor) will be able to detect its orientation very precisely by measuring variations in the magnetic field. Sensors like this can also be used to measure speed (for example, to count how fast a wheel or car engine cam or crankshaft is rotating).

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