The power loss in transformer takes place due to:

Explanation

The explanation is: There are two main causes of power loss in the transformer: i) Eddy currents Eddy currents are circulating currents that are induced in a conductive material when it is exposed to a changing magnetic field. These currents flow in closed loops within the material and create their own magnetic fields, which oppose the original changing magnetic field. Production of eddy currents produces heat which causes dissipation of energy, hence causing power losses. ii) Hysteresis loss Hysteresis loss refers to the energy dissipated in a magnetic material as it undergoes repeated cycles of magnetization and demagnetization, thus causing power losses.