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typeracer

Pit Stop
Racer slow (s10w)
Race Number 352
Date Mon, 20 May 2019 11:32:27
Speed 44 WPM Try to beat?
Accuracy 95.2%
Rank 4th place (out of 5)
Opponents charlieisneat (5th place) varunkuchakuri (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: