Electrical instruments and testing; how to use the voltmeter, ohmmeter, ammeter, potentiometer, galvanometer, the Wheatstone bridge, and standard portable testing sets (1907)
Schneider, Norman H. (Norman Hugh), Hargrave, Jesse · New York, Spon & Chamberlain; [etc., etc.] · leaf 250
Fig. 131. The resistance a to the fault from the binding-post B.L — 100A t1 is a = , where L equals the total re-sistance of the loop, A equals the reading of contactC, and£=: 1000 — A. … Fig. 132.To Locate Opens, Using Buzzer and Telephone, 228 ELECTRICAL INSTRUMENTS. In this case the slide resistance circle A B is usedwithout either of the resistances E or R. Connectto binding-post 1 the broken wire and to binding-post 2 a perfect wire having the same capacity permile. Connect…
Electric testing · Electric apparatus and appliances
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-153-92.webp)
