Harrison (free_borne)

Race #68

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Official speed 67.88 wpm (59.93 seconds elapsed during race)
Race Start December 31, 2019 12:33:35am UTC
Race Finish December 31, 2019 12:34:34am UTC
Outcome Win (1 of 5)
Accuracy 95.0%
Points 65.62
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.