Elementary lessons in electricity and magnetism (1906)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916, Schwetzky, Otto H. L. [from old catalog] · Chicago, Thompson & Thomas · leaf 70
at the two ends of this rod therefora 52 ELEMENTARY LESSOT^S ON [chap. i. both emit electrified streams of air, the upper one charging theupper portion of the front of the rotating disc positively, thelower one charging the lower portion of the disc negatively.The back of the rotating disc is at… … Fig. 29a. limit being reached when the electrification of the armatures Isso great that the leakage of electricity at their surface equalsthe gain by induction and convection. The charges let off bythe spikes of the diagonal conductor upon the front surface ofthe. moving disc are carried round and…
Electricity · Magnetism
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