Bryan (dumdum1)

Race #24

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Official speed 35.31 wpm (96.18 seconds elapsed during race)
Race Start October 5, 2019 12:47:20am UTC
Race Finish October 5, 2019 12:48:56am UTC
Outcome No win (4 of 5)
Accuracy 94.0%
Points 26.48
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.