Why standard voltage levels are multiples of 11 e.g. 110V, 220V, 11kV etc..?????

  1. Imtiaz_39 profile image58
    Imtiaz_39posted 7 years ago

    Why standard voltage levels are multiples of 11 e.g. 110V, 220V, 11kV etc..?????

    Standard voltage levels are 110V, 220V, 11kV etc. They values are always multiples of 11.
    Can any body provide me the detailed reason of it....??????

 
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