Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 495
THE PRINCIPLE OF THE DYNAMO. After noticing the effect of plunging a magnet into acoil of wire, it is not very difficult, in the light of presentelectrical knowledge, to understand how the process ofinduction is carried on in a continuous way in the armatureof a dynamo. The simplest form of… … Gramme Machine for Illustration. dynamos. A very crude ring answers the present purpose.Its core is formed of a compact circular coil of soft ironwire, which, in cross section, maj^ be circular or of anyother form. The core is wrapped with tape and varnishedto insure insulation. Around this iron…
Physics · Lantern projection · Electric apparatus and appliances
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