Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 400
flowsaround the field, so that there are not quite so many lines offorce cut as before. When the load is switched on to a shuntdynamo, the resistance in the field rheostat must therefore bediminished so that the voltage will be raised to its former value. Again, in the above case, if after the… … Fig. 363.—Regulating the E. M. F. at the Brushesof a Shunt dynamo by the Shunt Field Rheostat. 382 PRACTICAL ELECTRICITY. voltage. The potential difference at the brushes thus varies,in a shunt dynamo, with each change in load, increasing asthe load decreases and decreasing as the load im If the…
Electricity · Magnetism
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