binita (atinib21)

Race #1364

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Official speed 48.33 wpm (70.27 seconds elapsed during race)
Race Start January 17, 2020 2:35:10am UTC
Race Finish January 17, 2020 2:36:21am UTC
Outcome No win (3 of 4)
Accuracy 95.0%
Points 36.25
Text #4060102 (Length: 283 characters)

Transformers and most electric motors operate on alternating current. In such devices the flux in the iron changes continuously both in value and direction. The magnetic domains are therefore oriented first in one direction, then the other, at a rate that depends upon the frequency.