(zealindaus)

Race #3731

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Official speed 111.25 wpm (30.53 seconds elapsed during race)
Race Start March 7, 2020 4:32:12am UTC
Race Finish March 7, 2020 4:32:43am UTC
Outcome No win (1 of 1)
Accuracy 100.0%
Points 83.44
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.