View Pit Stop page for race #3209 by kristengreen — Ghost race
View profile for Kristen (kristengreen)
Official speed | 86.86 wpm (39.10 seconds elapsed during race) |
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Race Start | August 1, 2019 2:29:40am UTC |
Race Finish | August 1, 2019 2:30:19am UTC |
Outcome | No win (1 of 1) |
Accuracy | 99.0% |
Points | 65.15 |
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. |