Z (dazhengyu)

Race #29

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Official speed 53.93 wpm (62.97 seconds elapsed during race)
Race Start July 7, 2020 11:52:33am UTC
Race Finish July 7, 2020 11:53:36am UTC
Outcome No win (3 of 5)
Accuracy 98.0%
Points 40.44
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.