Electricity and magnetism : an elementary text-book, theoretical and practical (1920)
Glazebrook, Richard, Sir, 1854-1935 · Cambridge : The University press · leaf 408
ch theypreviously passed through, and at G the number of negativelines is a maximum. Thus during the motion from A to Can E.M.F. acts on the coil and a current circulates in it. After 398 ELECTRICITY [CH. XXIV passing G the negative lines decrease in number to vanishat D when lines begin to… … Fig. 252. brushes, connected with the external circuit, rub against thesean alternating current is produced in this circuit; by using acommutator instead of the rings, the current may be made totraverse the external circuit always in the same direction.The E.M.P. in the circuit varies as the coil…
Electricity · Magnetism
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