David (davidst)

Race #12

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Official speed 65.92 wpm (51.52 seconds elapsed during race)
Race Start August 18, 2019 12:35:09pm UTC
Race Finish August 18, 2019 12:36:01pm UTC
Outcome No win (2 of 5)
Opponents 5. proxy707 (55.28 wpm)
Accuracy 96.0%
Points 49.44
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.