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- DictionaryHall ef·fect/ˈhôl əˌfekt/
noun
- 1. the production of a potential difference across an electrical conductor when a magnetic field is applied in a direction perpendicular to that of the flow of current.
noun
The Hall effect is the production of a potential difference across an electrical conductor that is 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. Wikipedia