Wheatstone bridge
A Wheatstone bridge is a measuring instrument invented by Samuel Hunter Christie in 1833 and improved and popularized by Sir Charles Wheatstone in 1843. It is used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component. Its operation is similar to the original potentiometer except that in potentiometer circuits the meter used is a sensitive galvanometer.
Related Topics:
Measuring instrument - Samuel Hunter Christie - 1833 - Charles Wheatstone - 1843 - Electrical resistance - Bridge circuit - Potentiometer
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