Electricity and magnetism : an elementary text-book, theoretical and practical (1920)
Glazebrook, Richard, Sir, 1854-1935 · Cambridge : The University press · leaf 406
ire. In this case if the resistance in the external circuitdecreases the current in the armature and field coils increases. 396 ELECTRICITY [CH. XXIV The increase of the current in the field coils produces forconstant speed a rise in the E.M.F. of the machine which tendsto raise the external…
Electricity · Magnetism
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