Electrical and scientific instruments and apparatus : november 20th, 1899 (1899)
Elmer G. Willyoung & Co · New York : E.G. Willyoung · leaf 41
The Wire, Meter, or ^lide Bridge as it is variouslycalled, is one of the simplest forms of the Wheatstones Bridge. The twoinstances R3 and R4 of fig. 27 are replaced by a straight and uniform wireA B whose resistance, of course, is proportional to its length. The galvan-ometer terminal is a form of… … Fig. 28. 37 REQUIREHEXTS OF A OOOD SLIDE BRIDGE. 1. The wire should be uniform in cross section and homogeneous instructure, so as to have its resistance strictly proportional to length. 2. Wire must be hard so as not to be injured by slider. 3. Scale should be divided into 100 or 1000 equal parts…
Electric apparatus and appliances · Equipment and supplies
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