brown fox (brownfoxjumps)

Race #1507

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Official speed 120.89 wpm (28.09 seconds elapsed during race)
Race Start March 6, 2019 10:26:01am UTC
Race Finish March 6, 2019 10:26:29am UTC
Outcome Win (1 of 4)
Opponents 3. boerewors (109.08 wpm)
Accuracy 98.0%
Points 90.67
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.