Kibble, Bryan P. Division of Electrical Science, National Physical Laboratory, Teddington, Middlesex, United Kingdom.
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An extensively used electrical network of four resistances R1–4 (or impedances Z1–4 if alternating currents are involved). This network (see illustration), was first described by S. H. Christie in 1833, only 7 years after Georg S. Ohm discovered the relationship between voltage and current. Since 1843, when Charles Wheatstone called attention to Christie's work, Wheatstone's name has been associated with this network. See also: Electrical impedance; Electrical resistance; Ohm's law
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