Meadowcroft, Wm. H. (William Henry), b. 1853 · New York & London, Harper & brothers · leaf 77
time onelength of the wire cut through the lines offorce some electricity would be generated init, and this would continue as long as thespool was revolved. But, as each lengthwould only be a part of the one piece of wire,you will easily see that there would be agreat deal of electricity generated… … Fig. 19 would be broken off when it turned around,so we must use some other method. We fixon the end of the spool (which is called anarmature) two pieces of copper, so thatthey will not touch each other (as in Fig. 19),and fasten the ends of the wire to thesepieces of copper. This is called a…
Electricity
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