Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 28
and cobalt are the best, but themagnetic properties of these metals are very inferior whencompared with those of ii-on and steel. Artificial Magnets.—When a piece of iron or steel isbrought under the influence of a natural magnet, it takes onthe same property; that is. it abso becomes a magnet and… … Fig. 2.—Natural Magnet.
Electric machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
