Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 275
he stem to the left as shown. When thecurrent reverses as in fig. 3,243 the magnetism of the electromagnet isreversed and accordingly the south poles produced at the upper end 2,366 HAWKINS ELECTRICITY respectively attract and repel the n and s poles of the armature, caus-ing the stem to swing to… … PERMANENT MAGNETARMATURE \ m i ,», s i
Electrical engineering
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