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typeracer

Pit Stop
Racer Jack (jr9810)
Race Number 26766
Date Sun, 5 Jan 2020 19:29:09
Speed 90 WPM Try to beat?
Accuracy 97.3%
Rank 2nd place (out of 4)
Opponents 6hit (3rd place) zajbys (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)

Typing Review: