Elementary treatise on electricity and magnetism (1903)
Foster, George Carey, 1835-1919, Joubert, Jules François, 1834-1910. Traité élémentaire d'électricité, Porter, Alfred William, 1863- joint author · London, New York, Longmans, Green, and co. · leaf 221
ed iii Fig. 128, when heatedat the junction b by a spirit lamp, strongly deflects a magneticneedle placed inside the circuit. Any number of such couples may be associated together insuch a way as to form a pile or battery. Mellonis pile, whichhas been of great service in the investigation of… … Fig. 128.
Electricity · Magnetism
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