(keegant)

Race #168935

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Official speed 110.62 wpm (30.70 seconds elapsed during race)
Race Start August 29, 2019 10:18:26pm UTC
Race Finish August 29, 2019 10:18:57pm UTC
Outcome No win (1 of 1)
Accuracy 95.0%
Points 82.96
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.