ben (bennyy)

Race #918

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Official speed 47.11 wpm (72.09 seconds elapsed during race)
Race Start March 19, 2020 6:48:35pm UTC
Race Finish March 19, 2020 6:49:47pm UTC
Outcome No win (4 of 5)
Accuracy 92.0%
Points 35.33
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.