Joshua (joshagulto)

Race #1675

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Official speed 109.73 wpm (30.95 seconds elapsed during race)
Race Start January 21, 2019 7:35:22am UTC
Race Finish January 21, 2019 7:35:53am UTC
Outcome Win (1 of 2)
Accuracy 98.0%
Points 82.30
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.