Notes on electricity and magnetism. designed as a companion to Silvanus P. Thompson's Elementary lessons (1891)
Murdock, J. B. (Joseph Ballard), 1851-1931, Thomson, Silvanus Phillips, 1851-1916 · New York, Macmillan & Co. · leaf 145
rcuit system is here given. Fullinformation may be found in books on telegraphy, the best being prob-ably Prescotts Electricity and the Electric Telegraph. J32 NOTES ON and connects it with L. When pushed to the right thecircuit is open, and is closed only when the key is depressedand contact made… … Fig- 34- in the position shown touching the head //of the screw B(Fig. 33), and closing the circuit. From the key it passesto the relay R, entering at the binding post A, passingaround the electromagnet M, and issuing at B, passing intothe line to the next station. This current is furnishedeither…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
