Andrews, Ernest John, 1863-, Howland, Howard Newell, 1865- joint author · New York, London, The Macmillan company · leaf 236
Fig. IIG. … § 366] EFFECTS OF ELECTRIC CURRENT 221 which is a horseshoe magnet with a coil of wire suspendedbetween the poles. The force which holds the coil inposition is the torsion of the suspending wire, and thiscan be made as small as desired. The gen-eral arrangement is shown in Fig. 117.The instant that…
Physics
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