Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 98
Fir,. 94 Magnetic Lines of Force The lines leak out and take a short cut through the air and backround the bend. But this leakage across is variable, for if we provide a good pathfor the lines at the poles, by putting on a large soft-iron keeper, and
Electrical engineering · Electric power
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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