Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 207
. 202 and is alsoshown diagrammatically in Fig. 201. If the battery is being charged, then the voltage Eb increasesand the lamp voltage Et also increases slightly. This increasesthe pull on the plunger a which increases the pressure on thecarbon pile r and decreases its resistance, more current… … Fig. 201.—Lamp circuit regulator. greater part of the increased battery voltage is therefore ab-sorbed by the resistance R and the lamp voltage remains ap-proximately constant. Due to the multiplying effect of the aux-iliary solenoid a and carbon pile r, a slight change in the voltageacross the…
Electrical engineering
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