id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
34221	Gray, Elisha	Electricity and Magnetism			.txt	text/plain	54410	2552	70	Like electricity, magnetism has had a long history, but little use was It is a magnet only so long as the electric current is current of electricity through a wire, magnetic lines of force are earth is a great electromagnet; for the stronger the electrical current circuit through wire A by closing its key, an electrical action was call magnetic or electrical lines of force. open, the battery being in circuit, there were electrical lines of force If we heat a metal ring at one point a current of electricity will flow for electric light or power, and use a galvanic battery, we should have theory, but he constructed a line of bell-wire 1060 feet long and worked and the diaphragm sets up electric currents in the wire wound on the process the electric current, which comes from the power-house with an Earth electric currents, in telegraphy, 99, 116, 182.	./cache/34221.txt	./txt/34221.txt