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Difference between revisions of "Hall Effect Switches"
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'''Hall Effect Switches''' are generation of an electric potential perpendicular to both an electric current flowing along a conducting material and an external magnetic field applied at right angles to the current upon application of the magnetic field. | |||
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. The common analogy popular at the time of Hall's discovery was of electric current in a wire to a flowing liquid in a pipe. Hall's theory equated the magnetic force on the current resulting in a crowding to one side of the pipe or wire. Electromagnetic field theory has allowed a more refined interpretation of the physics responsible for the Hall effect. | |||