Modern electricity and magnetism, theoretically and practically considered (1885)
Avery, Elroy M[cKendree], 1844- [from old catalog] · New York and Chicago, Sheldon and company · leaf 147
f acidu- 316 MAGNETISM, lated water, as shown in Fig. 224. The solenoid may be made bywinding the middle part of about 3 yards of No. 20 insulated copperwire around a rod, half an inch in diameter, forming thus a coil, 4or 5 inches long. The current will set the axis of the solenoid in anorth and… … Fig. 225. Experiment 102.—Support a solenoid by placing the extremitiesof its wire (bent into the same vertical axis) in two mercury cups, asshown in Fig. 225, or use the solenoid of the floating battery abovedescribed. Bring the end of a second solenoid successively to theends of the first and…
Electricity · Magnetism
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