A textbook on mechanical and electrical engineering (1898)
International Correspondence Schools · Scranton : International Textbook Co., [1898-99] · leaf 393
about 8,500convolutions, or turns, of insulated copper wire .009 in. indiameter. The total resistance of the wire in the two mag-netizing coils is about 150 ohms. A vulcanized rubber shellor cover c is slipped over eachcoil when wound, to protect itfrom dust and bruises. 2435. Fig. 963… … Fig. 963. The principal disadvan- ELECTRICITY AND MAGNETISM. 1577 tage is the large amount of magnetic leakage caused by anunbalanced magnetic field. There is a large variety of short-range electromagnets adapted to special uses, but all thevarious types are modifications of the same general…
Electrical engineering · Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
