What are the two components that make up Iron Loss in a transformer?

The correct answer identifies the two main components responsible for Iron Loss in a transformer: eddy currents and hysteresis loss. Both of these factors occur within the magnetic core of the transformer when it is subject to alternating magnetic fields.

Eddy currents are induced currents that flow within the transformer core materials as a reaction to the changing magnetic field. These currents create heat due to the resistance of the material. Reducing eddy currents is often achieved by using laminated core materials, which is a common method used in transformer design to minimize losses.

Hysteresis loss, on the other hand, is a result of the magnetic material's inherent properties and its inability to completely return to its original state after being magnetized. Each time the magnetic field reverses, energy is lost due to the friction of the magnetic domains that must realign. This loss is typically dependent on the material properties and the frequency of the alternating current.

Collectively, these two losses contribute significantly to the inefficiency of transformers and are crucial factors in designing transformers that minimize energy losses. Thus, the combination of eddy currents and hysteresis loss accurately represents the components of Iron Loss in a transformer.