Science, asked by ananyyadav2907, 8 months ago

In united states of America the current changes its sign
after every 1=120 seconds.What is the frequency of AC
supply in USA
1.120 Hz
2.60 Hz
3.50 Hz
4.240 Hz

Answers

Answered by sanjay1540

1

Answer:

60Hz

Explanation:

if it is correct mark it as brainliest

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