Boe (ii734786)

Race #45

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Official speed 81.28 wpm (41.78 seconds elapsed during race)
Race Start February 25, 2019 6:15:09am UTC
Race Finish February 25, 2019 6:15:51am UTC
Outcome Win (1 of 5)
Opponents 3. mgursin (73.00 wpm)
Accuracy 98.0%
Points 60.96
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.