jude (jude17)

Race #343

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Official speed 64.96 wpm (52.28 seconds elapsed during race)
Race Start April 3, 2020 8:15:10am UTC
Race Finish April 3, 2020 8:16:03am UTC
Outcome No win (2 of 4)
Accuracy 97.0%
Points 48.72
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.