Introductory course of natural philosophy for the use of schools and academies. Ed. from Ganot's popular physics. By William G. Peck (1869)
Ganot, Adolphe, 1804-1887, Peck, William Guy, 1820-1892 · New York A.S. Barnes · leaf 463
s.Fig. 300 represents the method of arranging the details of a magnetwhich is intended to exhibit a great sustaining power. The plate in contact with the two poles is called an arma-ture. When the instrument is of soft iron, it is magnetized instai%:ir-ously by the passage of a current of… … Fig. 800. as instantaneously loses its magnetism when the current is stopped,or broken. This property has been utilized in the electro-magnetictelegraph. The Electrical Telegraph. 435. An Electrical Telegraph is an apparatus fortransmitting intelligence to a distance by means of electricalcurrents.…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
