Chicago : [Popular Engineering Pub. Co.] · leaf 490
e pieces. The E. M. F. may motor. — E. P., South Bend, Indiana. be represented by the curved line (M). Answer. — In direct current systems the flow With the coil in the position (A), the lines of of current is in one direction and may be rep- force are threading their way through it in resented by… … three distinct coils on the same armature, a negative direction, the lines of force now and located 120 degrees from each other. flowing through the coil in a direction oppo- This armature will generate three equal E. site their movement when the coil was at n b c (A). Proceeding from the south…
Electricity
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