The efficiency of transfomer is very high because

Options

A. There is no moving part
B. It uses AC only
C. It uses the copper wire for the coils
D. None of the above

Answer

A

Explanation

Transformer is a static device which transformer power from one circuit to other through electromagnetic induction. In electrical transformer as there are no moving parts, no friction. Losses in the transformer are very less compared to any other rotating machine, hence efficiency of transformer will ve very high which is about 95% to 98%.