Nicholas (t0903591)

Race #6391

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Official speed 66.02 wpm (61.62 seconds elapsed during race)
Race Start September 17, 2020 10:54:01pm UTC
Race Finish September 17, 2020 10:55:03pm UTC
Outcome Win (1 of 5)
Accuracy 95.0%
Points 63.82
Text #4060101 (Length: 339 characters)

A train equipped with, say, two dc motors, is started with both motors connected in series to an external resistor. As the speed picks up, the resistor is shorted out. The motors are then paralleled and connected in series with another resistor. Finally, the last resistor is shorted out, as the train reaches its nominal torque and speed.