sas (vsfd)

Race #9

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Official speed 52.58 wpm (64.59 seconds elapsed during race)
Race Start November 2, 2020 12:50:32am UTC
Race Finish November 2, 2020 12:51:37am UTC
Outcome No win (2 of 2)
Accuracy 94.0%
Points 39.43
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.