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H&b thomson wheatstone bridge
A Wheatstone bridge 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. Electrical resistance is a measure of the degree to which an electrical component opposes the passage of current. A bridge circuit is a type of electrical circuit in which the current in a conductor splits into two parallel paths and then recombines into a single conductor, thereby enclosing a loop.
Wheatstone: 0.1 Ohm ... 10 MOhm
