Question

alternating current used in our houses changes direction after how many seconds

Answer 1

In the United States, the alternating current (AC) which reverses its direction 60 times per second is used. In Europe, the alternating current (AC) which reverses its direction 50 times per second is used. In other words, US use 60 Hzalternating current while Europe uses 50 Hz alternating current

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Answer 2

after 0.01 second alernating current changes direction in india
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