s carefully discharged as possible. Fortyelements of a dry pile (zinc, copper, paper), applied with onepole to one of the inductors, and the other for a moment to theconnecting springs and the other inductor, may be used to de-termine, or to suddenly reverse, the character (vitreous or 332 Electric… … Telegraph application; but its action has been so startlinglysuccessful that good effect may be expected from larger machineson the same plan. 420. When this instrument is used to replenish the charge ofthe inductor in the constant electric machine, described above,one of its own inductors is…
Electricity · Magnetism
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