Omar (omar_letaief)

Race #251

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Official speed 66.00 wpm (51.45 seconds elapsed during race)
Race Start December 12, 2020 12:33:19pm UTC
Race Finish December 12, 2020 12:34:11pm UTC
Outcome Win (1 of 5)
Opponents 2. nyanuwin (54.98 wpm)
4. last220 (48.69 wpm)
Accuracy 97.0%
Points 49.50
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.