Qwerty (qwerty80801)

Race #5066

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Official speed 74.08 wpm (45.84 seconds elapsed during race)
Race Start February 24, 2019 7:08:12pm UTC
Race Finish February 24, 2019 7:08:58pm UTC
Outcome No win (3 of 5)
Accuracy 97.0%
Points 55.56
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.