Gaurav (gaurav_38)

Race #982

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Official speed 47.00 wpm (72.26 seconds elapsed during race)
Race Start July 11, 2020 8:44:46am UTC
Race Finish July 11, 2020 8:45:58am UTC
Outcome Win (1 of 5)
Accuracy 94.0%
Points 35.25
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.