. The Ontario high school physics. orking dynamo this difficulty isovercome by joining the ends of tlie wires to rings, from which the current is taken by brushes bear-ing upon them. A study of Figs. 530-533 will show how the current is generated in the coil and how it Tin c Pig. 531. —Principle of the IS made to now irom dynamo: brush to brush through the external conductor. Let ahcd be a coil of wire, having one end attached to thering A and tlie other to the ring B; and suppose the coil torotate about a horizontal axis between the poles N and S. Now the maximum number of lines of force pass
. The Ontario high school physics. orking dynamo this difficulty isovercome by joining the ends of tlie wires to rings, from which the current is taken by brushes bear-ing upon them. A study of Figs. 530-533 will show how the current is generated in the coil and how it Tin c Pig. 531. —Principle of the IS made to now irom dynamo: brush to brush through the external conductor. Let ahcd be a coil of wire, having one end attached to thering A and tlie other to the ring B; and suppose the coil torotate about a horizontal axis between the poles N and S. Now the maximum number of lines of force pass through the coil when it is in the position shown in Fig. 530 and 532, and the minimum number when it is in-the position shown in Figs. 531 and 533. In the first quarter-turn, that is, in the change from the position shown in Fig. 530 to the position shown in Fig. 531, the number of lines of force passing through the coil is decreasing, and a direct current (flowing clockwise viewed from N) is induced in it. During the next 442.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishe, booksubjectphysics
