plzzz help mock papr aftr 2 days

Asked by  | 4th Feb, 2009, 04:08: PM

Expert Answer:

it changes direction 100 times.

In one full cycle  current  flows in one direction and then the opposite direction. So a frequency of 50Hz refers to 50 cycles per second and hence current changes direction 100 times in one second.

Answered by  | 5th Feb, 2009, 02:31: PM

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