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Grade 12Electric Current

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

Profile image of shashank
12 Years agoGrade 12
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1 Answer

Profile image of Nirmal Singh.
ApprovedApproved Tutor Answer12 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