JEE MAIN - Physics (2003 - No. 20)
The core of any transformer is laminated so as to
reduce the energy loss due to eddy currents
make it light weight
make it robust and strong
increase the secondary voltage
Εξήγηση
Laminated core provide less area of cross-section for the current to flow. Because of this, resistance of the core increases and current decreases thereby decreasing the eddy current losses.