Q. The core of a transformer is laminated because :
A) energy losses due to eddy currents may be minimised
B) the weight of the transformer may be reduced
C) rusting of the core may be prevented
D) ratio of voltage in primary and secondary may be increased
Explanation
[Solution from source] A solid iron core lets large eddy currents circulate, wasting energy as heat. Thin insulated laminations break up these current paths and minimise eddy-current loss. Lamination does not change the turns ratio, and its purpose is not to reduce weight or prevent rusting. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.