mako (mako640)

Race #842

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Official speed 168.50 wpm (20.15 seconds elapsed during race)
Race Start May 11, 2020 3:48:38pm UTC
Race Finish May 11, 2020 3:48:58pm UTC
Outcome No win (1 of 1)
Accuracy 100.0%
Points 126.38
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.