Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 407
r wire in a coil about it.Connect one end of the wire withthe outer coating of a powerfully charged Leyden jar, and theother with a discharger as shown in Fig. 481. Discharge thejar through the wire. On testing the knitting needle witha magnetic compass it will be found to be magnetized.Evidently… … Fia. 481.—The pressure of an electriccurrent shown by its power to mag-netize steel. THE VOI/FAIC CP]LL 397 coatings almost at once assuming the same potential. Inorder to produce a continuous current a constant difterenceof potential must be maintained between the ends of theconductor. Tliis can…
Physics
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