The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 178
tial differencebetween adjoining sections of the commutator of an annature indifferent positions all around it. The potential differences aretaken by a volt-meter or potential galvanometer, connection with STANDARD El.ECTRICAIv DICTIONARY. 173 the armature being made by two small metal brushes,… … STREW&Trt OF EXCITmo CURRE.NT, Fig. 124. Magnetization Curve. with the distances from the commutator surface to the curve pro-portional to the potential differences as determined by shifting thepair of brushes all around the commutator. The above is S. P. Thompsons method. Another method of…
Electricity
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