Boris (bbchert)

Race #8

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Official speed 51.38 wpm (66.10 seconds elapsed during race)
Race Start February 3, 2019 12:39:46pm UTC
Race Finish February 3, 2019 12:40:52pm UTC
Outcome No win (3 of 5)
Opponents 5. petteri432 (48.68 wpm)
Accuracy 99.0%
Points 38.54
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.