Isaac (shellguy97)

Race #1449

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Official speed 70.81 wpm (47.96 seconds elapsed during race)
Race Start May 15, 2019 4:08:06am UTC
Race Finish May 15, 2019 4:08:54am UTC
Outcome No win (2 of 4)
Accuracy 96.0%
Points 53.11
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.