Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 35
middle of the magnet is thus accounted for. 24. Making Magnetic Fields.—Lay a bar magnet flaton a table and cover it with a sheet of cardboard. Obtainsome sifted iron filings from which the dust has been re-moved and enclose them in a pepper-box or piece of gauzenetting. Sift the filings over the… … Fig. 24.—Coating Paper with ParaffinWax. MAGNETIC FIELDS, 17 representation of the magnetic field surrounding the magnet,as in Fio-s. 25 and 26. When it is desired to make a perma-
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
