Electricity for public schools and colleges (1891)
Larden, W. (Walter), b. 1855 or 6 · London : Longmans · leaf 416
achine.Here we can see the ring-shaped armature turning between thepole-pieces a and b of the steel magnet A ; the arrangements forgiving a rapid rotation to this armature ; and the collecting springsor brushes c and i, in contact with the axle on opposite sides of it,bymeans of which a current is… … Fig. i. section. From the way in whichthe armature rotates these wiresdo not cut the Unes of force ;and thus induced eddy-currents,a cause of waste of energy, donot occur as would be the casewere the core solid. Round this core is woundthe insulated copper wire thatforms the coil in which…
Electricity
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