merlinarmas (merlinarmas)

Race #99

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Official speed 30.41 wpm (111.67 seconds elapsed during race)
Race Start October 16, 2020 10:03:35am UTC
Race Finish October 16, 2020 10:05:26am UTC
Outcome No win (3 of 5)
Accuracy 95.0%
Points 22.81
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.