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Racer Luca (luclucluca)
Race Number 104
Date Thu, 13 Dec 2018 14:12:45 +0000
Speed 58 WPM Try to beat?
Accuracy 96.3%
Rank 1st place (out of 4)

Text typed:

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.
Electrical Machines, Drives, and Power Systems (book) by Theodore Wildi (see stats)

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