PP (trickster999)

Race #110

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Official speed 55.68 wpm (73.06 seconds elapsed during race)
Race Start December 12, 2020 2:04:14pm UTC
Race Finish December 12, 2020 2:05:27pm UTC
Outcome No win (4 of 5)
Opponents 2. webfox (70.59 wpm)
3. grimmlon (63.13 wpm)
Accuracy 95.0%
Points 53.83
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.