Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 25
the pole last leaves that body. \ 36. 12. Magnetising Each Half Separately.—A better magnet will be obtained by magnetising each half separately,as illustrated in Fig. 7. Stroke one-half of the steel bar withthe S-pole, beginning at the centre and following the direc-tion of the dotted line. Repeat… … MAGNETISATION. 7 of the arrows, as in Fig. 8. In stroking the opposite side,the same limb of the horseshoe must be brought into contact [sj s~ s 33. N E2 Fig. 7.—Magnetising Each Half Separately. with the same pole, as before. A piece of soft iron laidacross the ends of the horseshoe while being…
Electricity · Magnetism
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