Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 574
iece of quite thin brass should be bent together in a U form,and the wire should be allowed to pass through the channelthus formed ; the thickness of the metal will regulate thespace between the adjacent coils of wire. The windingbegins at the middle, leaving the terminal, H. When oneof the heads… … 552 EXPERIMENTAL SCIENCE. fine wire is now continued toward the center of the coil;when the second la3-er is complete, it is covered as in thecase of the first coil, when the third is wound on, and so onuntil it is about 3| inches in diameter. The secondary wireshould not be wound close to the…
Physics · Lantern projection · Electric apparatus and appliances
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