India Languages, asked by romanticab75, 1 year ago

30)Standard frequency usually for electric supply is
(a) 50 Hz (b) 60 Hz (c) 50 to 60 Hz
(d) 50 to 55 HZ

Answers

Answered by prashant247

1

Answer:

c. 50-60............................

Answered by Ladylaurel

4

Answer:

happy to help you.....

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