The elements of dynamic electricity and magnetism (1903)
Atkinson, Philip. [from old catalog] · New York, D. Van Nostrand company · leaf 205
f two copperrings, insulated from each other, on each of which a 188 DYNAMIC ELECTRICITY AND MAGNETISM. brush, connected with a separate terminal of the externalcircuit, makes contact. The armature core is composed of insulated sheet-iron disks, and ventilated by tubular openings in themanner… … Fig. supposing the coils to lie at right angles to the surfaceof the paper, the outer ends turned from the observerand the inner ends towards him. Each alternate coil isoppositely wound as shown, and they all form a contin-uous closed circuit, the opposite terminals of which areconnected with the…
Electricity · Magnetism
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