Using transformer laminations primarily addresses which issue?

Using transformer laminations primarily addresses the reduction of eddy current losses. Eddy currents are loops of electric current that are induced within conductors by a changing magnetic field. These currents can cause energy losses in the form of heat, which reduces the overall efficiency of the transformer. By laminating the transformer core, which involves slicing the core material into thin sheets, the flow of these eddy currents is restricted. This is because the thinner laminations create higher resistance to the flow of eddy currents compared to a solid core, which significantly diminishes energy losses. Consequently, this design practice results in improved efficiency and performance of the transformer.