Question

Transformers are electrical devices which are normally used to:
a) Change the voltage from one level to another b) Increase the power c) Increase the frequency d) Decrease power

Answer 1

I think the correct answer is A

Answer 2

Here is your answer

Transformers are used to change the voltage from one level to another.
It is of two types
1)Step up
2)Step down

HOPE IT IS USEFUL