The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 34
h thegalvanometer in the direction from A to P if the currentin the potentiometer flows from A to B. Otherwise it MEASUREMENT OF RESISTANCES. 19 will be impossible to find a point of balance on the wire,i.e., similar poles of the secondary cells in the two circuitsmust be joined to A. As in the… … Fig. 4.—Measurement of Armature Resistance. D Dynamo armature. R, Standard low resistance. Rj Adjustable resistance.Ci Co Cells, preferably secondaries. G Galvanometer.A B Potentiometer wire. P Contact key. S Switch for breaking main circuit. a, b, c, d, e, /, Double-pole 2-way switch, or…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
