Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 239
net. If we examine Fig. 160, the magneticlines of force, represented by the long arrows, extend from the 224 PHYSICS OF THE HOUSEHOLD north pole to the south pole of the magnet. Every time thecoil makes one revolution, each side of the coil cuts the magnetic lines of force twice,first in one… … FIG. 160. — Principle of the dynamo. second half revolution, and is in the opposite direction. Thus if the coil makes five revolutions each second, there are ten separate currents set up each second, five in one direction, and five in the other. A current which is reversed in direction a number of…
Physics · Home Economics
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