Electricity and magnetism for advanced students (1920)
Starling, Sydney George, 1873- · London Longmans, Green · leaf 103
and it has the great advantage that it is a null method, the galvanometer being required to detect a want of balance and not to measure a deflection. Fig. 93 (i) is a diagrammatic representation of the Wheatstones net, and Fig. 93 (ii) shows the arrangement used in the Post Office box. P R We have… … AA/VWA/ (ii) Fir,. 93. arms P and Q usually each consist of three resistances of 10, 100, and1000 ohms respectively, so that any decimal ratio from 1: 100 up to 100:1may be used. The third arm R is an ordinary set of i-esistances, and theunknown resistance S, which is to be measured, is made the…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
