Tim (tim28)

Race #4791

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Official speed 98.08 wpm (34.62 seconds elapsed during race)
Race Start April 30, 2019 9:03:59pm UTC
Race Finish April 30, 2019 9:04:34pm UTC
Outcome Win (1 of 4)
Opponents 3. theakonigod (61.44 wpm)
Accuracy 99.0%
Points 73.56
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.