हर्ष (whane_johnson@yahoo.co.in)

Race #724

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Official speed 78.79 wpm (51.63 seconds elapsed during race)
Race Start October 17, 2019 10:16:31am UTC
Race Finish October 17, 2019 10:17:23am UTC
Outcome No win (2 of 5)
Opponents 1. hsoz (82.46 wpm)
Accuracy 99.0%
Points 76.17
Text #4060101 (Length: 339 characters)

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.