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
By using the star- delta starting methodBy using variable rhoestatsBy using auto transformers
the goverment can do conrropt in coutry that why coutry not ability to grow
No. Transformers only work with AC. Tongue-voltage is DC.
no
using step up transformers