dre (ndree)

Race #34

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Official speed 72.57 wpm (46.80 seconds elapsed during race)
Race Start December 12, 2018 2:00:57pm UTC
Race Finish December 12, 2018 2:01:43pm UTC
Outcome Win (1 of 2)
Accuracy 97.0%
Points 54.42
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.