Wheatstone bridge
- a divided bridge circuit (see bridge, ) having four resistances in series, used to find the value of an unknown resistance by comparing it with three known resistances
- a device containing such a circuit
See Wheatstone bridge in American Heritage Dictionary 4
(hwētˈstōnˌ, wētˈ-) also Wheat·stone's bridge (-stōnzˌ)
noun An instrument or a circuit consisting of four resistors or their equivalent in series, used to determine the value of an unknown resistance when the other three resistances are known.
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Wheatstone bridge
to calculate the unknown resistance: Rx
= (
R2/R1
) Rv
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