Justin (nutmeg_0)

Race #38

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Official speed 49.20 wpm (69.02 seconds elapsed during race)
Race Start February 25, 2019 6:48:25am UTC
Race Finish February 25, 2019 6:49:34am UTC
Outcome No win (3 of 4)
Accuracy 94.0%
Points 36.90
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.