Daniel (shifu254)

Race #1434

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Official speed 51.26 wpm (66.25 seconds elapsed during race)
Race Start June 30, 2019 8:53:02pm UTC
Race Finish June 30, 2019 8:54:08pm UTC
Outcome No win (3 of 5)
Accuracy 96.0%
Points 38.44
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.