Elementary treatise on electricity and magnetism : founded on Joubert's "Traité élémentaire d'électricité" (1909)
Foster, G. Carey (George Carey), Porter, Alfred William, 1863-1939, Joubert, Jules François · London : Longmans · leaf 372
252] MAGNETIC ACTION OF A CURRENT :U9 … Fig. 211. the couple due to the earth acts in a phxne containing the axis, ithas no effect on the position of the needle. The needle thenalways sets at right angles to the current, whatever be the strengthof the latter. Hence it follows that the actionof the current is exerted in a direction at…
Electricity · Magnetism
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