Thomas (tdai698)

Race #1550

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Official speed 119.16 wpm (28.50 seconds elapsed during race)
Race Start August 21, 2019 2:19:54pm UTC
Race Finish August 21, 2019 2:20:23pm UTC
Outcome Win (1 of 4)
Opponents 2. glacierisslow (106.61 wpm)
Accuracy 100.0%
Points 89.37
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.