malkin98 (malkin98)

Race #425

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Official speed 75.96 wpm (44.71 seconds elapsed during race)
Race Start October 23, 2020 11:10:40pm UTC
Race Finish October 23, 2020 11:11:25pm UTC
Outcome Win (1 of 5)
Accuracy 97.0%
Points 56.97
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.