Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 295
By the same arrangement it can be shown that whentwo finite currents are inclined to each other without cross-ing, they attract when both run towards or both run away 276 Electricity. [Book III. from the common apex, but repel when one runs towardsand the other away from the apex. The attraction… … Fig. 174. simple form of contact breaker and commutator. On causingthe spirals to hang in parallel planes a short distance apart,and passing the current so that it shall run in parallel direc-tions round both spirals, they are attracted towards eachother. On hanging the spirals initially in…
Electricity
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