Question

The core of a transformer is laminated because :-

• A. ratio of voltage in primary and secondary may be increased
• B. energy losses due to eddy currents may be minimised
• C. the weight of the transformer may be reduced
• D. rusting of the core may be prevented.

Answer 1

Answer: (B)

energy losses due to eddy currents may be minimised

Answer 2

The core of a transformer is laminated to minimize theenergy losses from eddy currents. This reduces the interference of the primary coil with the secondary coil and thus, the energy transfer becomes efficient. When the transformer core heats up, the energy is lost due to the eddy currents. This is electrical energygiven up in the form of heat. To prevent this, the transformer core is laminated.

Also Read:Power Transformers