How are the energy losses reducedin a transformer ?

Write any two factors responsible for energy losses in actual transformers?

What is transformer?

Name the various lossed in a transformer.

Give the principle of a transformer, construction of a stepdown transformer. Give any two energy losses of a transformer.

Show diagramatically two different arrangements used for winding the primary and secondary coils in a transformer. Assuming the transformer to be an ideal one write expressions fo rthe ratio of its output current to input current in terms of the number of turns in the primary and secondary coils. Mention two reasons for energy losses in an actual transformer.