Notes on electricity and magnetism. designed as a companion to Silvanus P. Thompson's Elementary lessons (1891)
Murdock, J. B. (Joseph Ballard), 1851-1931, Thomson, Silvanus Phillips, 1851-1916 · New York, Macmillan & Co. · leaf 82
ent, it is at onceevident that a current passesthrough the galvanometer allthe time, and continues to doso unless the resistance in cand d becomes zero. Everychange of resistance in a, cor d will affect the currentflowing through G, as will alsothe opening or closing of thekey k when any difference… … the common relation of the Wheatstone bridge. If the galva-nometer is a sensitive one, the deflection will be nearly 90° and asin that position a change of current produces but little effect on 70 NOTES ON the needle it is necessary to reduce the deflection either by theuse of a magnet or by…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
