Guest
Race Result Details |
| Racer | Darcy (5719) |
| Race Number | 158 |
| Date | Tue, 8 Jan 2019 12:16:43 |
| Speed |
46 WPM
 Try to beat?
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| Accuracy | 94.7% |
| Rank | 1st place (out of 5) |
| Opponents | mehmango (2nd place) |
Text typed:
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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.
— (book)
by Theodore Wildi
(see stats)
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