Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 25
ole (C)itself, but on removing the iron bar (A), keeping the magnet Electricity. [Book I, (0) in position, the suspended magnet will fall back almostinto its normal position. The large magnet (D) is placed tosteady the movements of the suspended needle in the experi-ment. These two experiments… … Fig. 7. can be illustrated by observing the behaviour, under induc-tion, of pieces of iron of various shapes, with one or moremagnet poles variously disposed round them. If, for ex-ample, a north magnet pole be presented to the middle ofa bar, the central part becomes a south pole, and each ofthe…
Electricity
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