Morton, Edward Reginald, 1867- · New York : E.B. Treat & Co. · leaf 45
r part ofthe current generated in the armature passes round thefield magnet, and are thus self-exciting. The iron of thefield magnet always retains a small amount of permanentmagnetism. This is sufficient to give rise to a smallinitial current in the armature, which circulating roundthe field… … RSS S£Nl£S WOUND DYNAMO Fig. 6.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-106-45.webp)
