A (kmos)

Race #3712

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Official speed 75.34 wpm (45.08 seconds elapsed during race)
Race Start April 2, 2020 3:57:50pm UTC
Race Finish April 2, 2020 3:58:35pm UTC
Outcome No win (4 of 5)
Opponents 2. jounsn (94.24 wpm)
3. splork (84.75 wpm)
Accuracy 96.0%
Points 56.51
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.