Elementary treatise on electricity and magnetism : (1905)
Foster, G. C. (George Carey), 1835-1919, Joubert, J. (Jules François), 1834-1910, Porter, Alfred W. (Alfred William), 1863-1939 · London ; New York ; Bombay : Longmans, Green, and Co. · leaf 133
Fig. 61. … FiG. 62. the carriers of the replenisher. The influencing conductors arerepresented by two sti-ips of tinfoil fixed to the centre of the paperarmatures. They are connected with two small brushes whichtouch the studs just before their passing under the combs; thesebrushes play the same part as the…
Electricity · Magnetism
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