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typeracer

Pit Stop
Racer Bob (pickboys)
Race Number 31
Date Sat, 10 Aug 2019 9:50:18
Speed 89 WPM Try to beat?
Accuracy 98.9%
Rank 2nd place (out of 4)
Opponents al1_16 (3rd place) mark40511 (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: