Sumit (sumit_ghag)

Race #4937

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Official speed 97.11 wpm (34.97 seconds elapsed during race)
Race Start October 16, 2020 6:37:40pm UTC
Race Finish October 16, 2020 6:38:15pm UTC
Outcome Win (1 of 5)
Accuracy 99.0%
Points 72.83
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.