Why is it 50hz or 60hz?

Related questions

1. Is Hz bigger than kHz?
2. Is 15000 Hz good hearing?
3. What is Hz equivalent to?
4. What does Hz stand for?
5. What happens to a 60hz motor on 50hz?
6. Why do we use 60 Hz?
7. How do you calculate Hz?
8. Why do we use 440 Hz?
9. What is 50 Hz picture quality?
10. How does Hz work?

Tags

1. #country
2. #voltage
3. #frequency
4. #losses
5. #copper
6. #although
7. #cycles
8. #throughout
9. #prevent
10. #plates
11. #expensive
12. #require
13. #second
14. #transformers
15. #varies
16. #calculated
17. #world
18. #electricity
19. #effective
20. #current