View Pit Stop page for race #174 by wwwwwwxjdj1 — Ghost race
View profile for 一个风和日丽 (wwwwwwxjdj1)
Official speed | 42.06 wpm (80.74 seconds elapsed during race) |
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Race Start | March 30, 2020 8:10:38am UTC |
Race Finish | March 30, 2020 8:11:59am UTC |
Outcome | No win (3 of 3) |
Accuracy | 93.0% |
Points | 31.54 |
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. |