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typeracer

Pit Stop
Racer dads (crax_)
Race Number 2
Date Fri, 10 Apr 2020 21:01:45
Speed 87 WPM Try to beat?
Accuracy 97.8%
Rank 4th place (out of 5)
Opponents agural (2nd place) moeroach (3rd 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)