Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 532
onvolutions and layers, DYNAMIC ELECTRICITY. 509 SO as to greatly increase the length of the wire in each sec-tion. Where the exact dimensions of the machine are notknown the armature should be made first, the field magnetbeing adapted to the armature. RHEO.STAT. Besides the carefullY constructed… … German Silver Rheostat. are also a necessity to the electro-plater and to users ofdynamos and batteries generally. Fig. 497 illustrates a simple rheostat for heavy currents.It is designed to be introduced into the field magnet circuitor the external circuit as circumstances ma}- require. This…
Physics · Lantern projection · Electric apparatus and appliances
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