Jeffrey (jophee)

Race #316

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Official speed 99.09 wpm (34.27 seconds elapsed during race)
Race Start June 12, 2020 3:10:26pm UTC
Race Finish June 12, 2020 3:11:00pm UTC
Outcome Win (1 of 2)
Accuracy 98.0%
Points 74.32
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.