surfertrek (yonkdaddy)

Race #309

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Official speed 104.17 wpm (32.60 seconds elapsed during race)
Race Start March 14, 2019 3:03:13am UTC
Race Finish March 14, 2019 3:03:45am UTC
Outcome Win (1 of 4)
Accuracy 96.0%
Points 78.13
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.