Question

Which type of transformer is used is A.C. electrical power distribution:
(A) Step-up transformer
(B) Step-down transformer
(C) both (a) and (b)
(D) None of these​

Answer 1

Answer:

both a and b is used in an AC electrical power transformer.

it can be step down for switching off the alternative current while it can be pull up too for switching on the alternative current.