Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 35
ce, then the middle finger will point in the direction of theinduced e.m.f. The direction of the current in xy, as determined by the right-hand rule, isshown in Fig. 13 for the case where the coil is moving downward and thenumber of lines of force threading the coil is decreasing. This current… … Fig. 13. Fig. 14. Direction of the generated electromotive force. If now the direction of motion of the coil be reversed so that the number oflines of force threading the coil is increasing, the current will be reversed, asshown in Fig. 14, and the magnetic flux <j>c will oppose the main flux…
Electrical engineering
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