Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 288
oat, it has been shown that onpassing a current through the wire it rotates under theaction of the vertical component of the earths magnetism inaccordance with Amperes rule. 182. Magnetic Properties of a Closed Current.—If we take a wire bent in the form of Fig. 168, in which thecurrent passes… … Fig. 163. If we now take a magnet, and present its north pole to A,it will be found that A is attracted by it, and if we presentthe same pole to B it will be repelled. If we next presentthe north pole to the back of A it will be repelled, and theback of B will be attracted. If the south pole of the…
Electricity
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