Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples (1911)
Moreton, David Penn, 1882- · Chicago, The Reilly & Britton co · leaf 65
ir relation to each other gives the ratiqbetween the known and the unknown resistances. 58. Commercial Wheatstone Bridge.—The form of Wheatjstone bridge described in the previous section is not usedto any great extent in practice, as its operation is usually tocTtedious, and for this reason it is… … Fig. 18 bridge is shown in Fig. 18. The letters in the figure corre-spond to those in Fig. 17. The resistances (DB) and (DA)are the ratio arms, consisting of three coils each, having theresistances marked in the figure. The resistance (AC),called the rheostat of the bridge, consists of a number of…
Electrical engineering
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