Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 62
Fig. 44.—Action of a solenoid. If long bar magnets are placed in the solenoid field as shown indiagram B, Fig. 44, then the n pole of magnet x will tendto movein the direction of the lines of force, see page 2, and be pulledinto the solenoid, while the s pole of magnet y will tend to movein a…
Electrical engineering
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