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why is that all the voltage that runs through electrical wires are in multiple of 11...i.e. 220v,440v,11000v

why is that all the voltage that runs through electrical wires are in multiple of 11...i.e.  220v,440v,11000v

Grade:12

1 Answers

Nirmal Singh.
askIITians Faculty 44 Points
8 years ago
It is due to presence of form factor(Kf) in the emf equation of Alternators and transformers.Value of form factor is 1.11. it is the international standard values set up by most probably IEEE. which is followed.
Thanks & Regards,
Nirmal Singh
Askiitians faculty

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