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typeracer

Pit Stop
Racer raven (raven_zoo)
Race Number 257
Date Sun, 15 Nov 2020 23:50:29
Speed 117 WPM Try to beat?
Accuracy 96.8%
Rank 2nd place (out of 4)
Opponents chakk (1st place)

Text typed:

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.
— (book) by Theodore Wildi (see stats)