wheat-stone bridge

Wheatstone bridge

noun Electricity.
a circuit for measuring an unknown resistance by comparing it with known resistances.
Also, Wheatstone's bridge.
Compare bridge ( def 9 ), null method.


Origin:
1870–75; named after C. Wheatstone

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World English Dictionary
Wheatstone bridge (ˈwiːtstən)
 
n
a device for determining the value of an unknown resistance by comparison with a known standard resistance
 
[C19: named after Sir Charles Wheatstone (1802--75), British physicist and inventor]

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