Creeves (creevesyt)

Race #582

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Official speed 106.96 wpm (31.75 seconds elapsed during race)
Race Start March 7, 2020 5:53:55pm UTC
Race Finish March 7, 2020 5:54:27pm UTC
Outcome Win (1 of 4)
Accuracy 99.0%
Points 80.22
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.