Henry, Joseph, 1797-1878 · Philadelphia, Printed by James Kay, Jun. & Brother · leaf 15
ble discovery. 27. The energetic action of the flat coil, in producing the induction of a current on itself, led me to conclude that it would also be the most proper means for the exhibition and study of the phenomena of the secondary galvanic currents. 28. For this purpose coil No. 1 was arranged… … compound helix is repre¬ a represents coil No, 1, b helix No. 1, and c, d, handles for receiving the shock. sented as receiving the in¬ duction, instead of coil No. 2. 29. When the ends of the second coil were rubbed together, a spark was produced at the opening. When the same ends were joined by
Electromagnetic induction · Electromagnetism · Electric currents
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