Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 284
iron wires, which by theirinductive action, greatlyincrease the strength ofthe current. The second-ary coil, C, often containsseveral miles of wire, andends in two poles sup-ported upon glass pillars. Fi*-336- 922. To make and break the current with the greatest ease, the primary cur-rent passes… … 923. When a current is interrupted, a wave of electricityin the contrary direction to the original current enters thewire. This largely detracts from the effect of the inducedcurrent. In the Induction Coil, the injurious effect isavoided by allowing this extra current to enter a Condensermade of…
Physics
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