Rika (z3us99)

Race #249

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Official speed 46.37 wpm (73.24 seconds elapsed during race)
Race Start March 18, 2019 2:50:10pm UTC
Race Finish March 18, 2019 2:51:24pm UTC
Outcome No win (3 of 5)
Opponents 1. crar (63.45 wpm)
Accuracy 92.0%
Points 34.78
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.