Transformers are designed so that energy losses are reduced to a minimum. This is achieved through which of these process?

I. Using a soft iron ore
II. Laminating the iron core to reduce energy loses due to eddy current
III. Designing an efficient iron core

A.

I & II only

B.

II only

C.

I, II, & III only

D.

III only

Correct answer is C

Fig (I) (II) (III) are they in which a transformer was designed to reduce an energy loses by reducing through this collective designed or efforts