Which of the following does not change in a transformer ?

In a transformer the energy is conveyed from primary to secondary

A transformer core is laminated to

What type of losses are primarily present in transformers?

What is the basic principle of operation of a transformer?

The degree of mechanical vibrations produced by the laminations of a transformer depends on

The dielectric strength of transformer oil is expected to be

What type of losses occur in a transformer?

What is the typical frequency of transformers used in power systems?

Which of the following is not a part of transformer installation?