rjey (rjey)

Race #312

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Official speed 40.52 wpm (83.81 seconds elapsed during race)
Race Start August 21, 2020 4:36:48am UTC
Race Finish August 21, 2020 4:38:12am UTC
Outcome No win (4 of 5)
Accuracy 95.0%
Points 30.39
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.