Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 47
Fig. 11. Fis. 1?. magnetic circuit of the transformer, on the other hand, is whollyof iron as shown in Fig. 12. The magnetizing action of the exciting current of an electro-magnet is called viagnetomotive foire, and it is proportional tothe product of the current and the number of turns of wire…
Dynamos · Electric motors
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