erick (speedy1413)

Race #392

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Official speed 110.07 wpm (30.85 seconds elapsed during race)
Race Start September 22, 2020 3:12:03am UTC
Race Finish September 22, 2020 3:12:34am UTC
Outcome Win (1 of 3)
Accuracy 96.0%
Points 82.55
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.