## Hall effect
If a current ( I) is passed through a conducting crystal in a direction
perpendicular to that of an applied magnetic field (H), the conductor
develops a potential (V) between the faces which are mutually perpendicular
to both the direction of current and the magnetic field. The magnitude of
the potential difference is given by V = IH/Ned
where N is the number of current carriers, e is the electronic
charge, and d is the distance of separation of the two faces across
which the potential is developed. The Hall effect can be used to test the electrical properties of materials and in ascertaining the strength of magnetic fields. It also forms the basis of the Hall effect thruster. ## Related categories• ELECTRICITY AND MAGNETISM• ELECTRONICS AND SEMICONDUCTORS • SOLID STATE PHYSICS | |||||||

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