Hira (giraffe3000)

Race #6

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Official speed 31.55 wpm (107.64 seconds elapsed during race)
Race Start November 23, 2020 2:47:57pm UTC
Race Finish November 23, 2020 2:49:45pm UTC
Outcome No win (2 of 4)
Accuracy 92.0%
Points 23.66
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.