All countries use step-up Transformers -if that is what you are asking.
Transformers are necessary to stepup or stepdown voltage levels so that transmission of power is convenient. without stepup/stepdown voltage level according to our requirement losses will be very high and transmission and usage of power is not feasible.
Rectifiers turn A/C into D/C, but transformers can only run on A/C.
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Centre point earthed
No. Transformers only work with AC. Tongue-voltage is DC.
Bumblebee talks using his radio
Yes and a lot of people like it like me and my coutry is the U.S
the goverment can do conrropt in coutry that why coutry not ability to grow
By using the star- delta starting methodBy using variable rhoestatsBy using auto transformers
No. Transformers only work with AC. Tongue-voltage is DC.
no
using step up transformers