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Issue of power frequency current direction

2012-05-24View Original

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How many times per second does the direction of the current change in 50-hertz AC power?
Reply #22012-05-24
50 times. Frequency is the number of vibrations completed per unit of time. . . . . . .
Reply #32012-05-24
100 times: Sine has a period of 360 degrees, with one change in the range of 0~180 degrees and another in the range of 180~360 degrees. If counting from the origin and ignoring those in front, it is 99 times.

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Translated at 2026-07-26 02:02:23

Original: https://bbs.hcbbs.com/thread-1003754-1-1.html

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