Lamination is made to decrease the eddy current loss by enhancing the resistance of the core. The core comprises thin steel sheets, thereby having a relatively excellent resistance, each lamination being separated from others by a thin coating of varnish.

How does laminated core reduce eddy current loss?

As 4 laminations are stacked together, hence the cross-sectional area of each lamination perpendicular to the magnetic field will become (A/4). Thus, the flux linking through each lamination will be Ø = BA/4. ... Thus the use of thin lamination reduces the Eddy Current Loss.

Can eddy currents be Minimised by using laminated core?

To reduce the eddy current we can laminate the core to increase the overall resistance of the magnetic material. Hence, the correct option is A. In actuality, loss of energy through heat is not the only form of energy loss due to eddy current. ... Hence, it reduces the overall magnetic field.