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 508
moment for the same weight. The small mirror is fixed to oneof the sets of needles, or, betterstill, be-tween thetwo coils,betweenwhich a.sufficient ,space is;left. The^dampingis effected by a thin plate of mica, that moves withtlie needle. The two coils can be con-nected in series or in par-allel…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
