drop that chitty ching ching (the_israelson)

Race #3106

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Official speed 70.08 wpm (58.05 seconds elapsed during race)
Race Start November 26, 2019 1:45:35pm UTC
Race Finish November 26, 2019 1:46:33pm UTC
Outcome No win (3 of 5)
Opponents 4. nguyenvuthuydung (59.03 wpm)
Accuracy 96.0%
Points 67.75
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.