economizing (economizing)

Race #1365

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Official speed 95.01 wpm (35.74 seconds elapsed during race)
Race Start December 3, 2020 10:51:29am UTC
Race Finish December 3, 2020 10:52:04am UTC
Outcome Win (1 of 5)
Opponents 2. ivanplaystr (91.29 wpm)
Accuracy 98.0%
Points 71.26
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.