An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 219
nient and sufficiently accurate for most pur-poses. The principle of operation is, however, just the same 190 ELECTRICITY AND MAGNETISM whatever the form. When four resistances are grouped as infigure 123, and a battery and galvanometer form part of thecircuit as shown, the combination is called a… … shouJd also be noted that a bal-ance can be obtained if the posi-tions of the galvanometer and thebattery are interchanged, thebattery being between e and /while the galvanometer is joinedfrom c to d. The resistance coilswhich represent A and B are often called the balancing or ratiocoils and bear…
Electricity · Magnetism
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-200-81.webp)
