Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 555
s will be produced with increased force. When a longsecondary coil, having the turns of its wire well insulated from each other,surrounds a primary coil provided with a core of soft iron, or still better,with a bundle of annealed iron wires, a series of powerful discharges, likethose of a Leyden… … Fig, 267.—Riihntkorffs Coil. Ruhmkorff,and are therefore often called Ruhmkorffs Coils. One of theseis represented in Fig. 267. A B is the coil, and the apparatus is providedwith what is termed a condenser, which consists of layers of tin-foil placedbetween sheets of thick paper, and alternately…
Inventions
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