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 156
reases or as the capacity of the condenser diminishes, the line is less defined; it becomes narrowerand less luminous, and acquires a zigzag form (Fig. 84), passinginto that of a brush. The production of the spark is always accompanied by ahard crackling sound, due to a violent mechanical… … Fig. 84. Fig. 85.
Electricity · Magnetism
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