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Q.

The core of a transformer is laminated as

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a

it improves the ratio of voltage in the primary and secondary may be increased.

b

it checks rusting of the core may be stopped.

c

it reduces energy losses due to eddy currents.

d

it increases flux linkage.

answer is C.

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Detailed Solution

Laminated core means a layered core instead of a single solid core. Eddy currents are current loops generated by changing magnetic fields. They flow in a plane perpendicular to the magnetic field.
Laminated magnetic core reduces eddy currents. For this reason, electrically isolated laminations are utilized to manufacture transformers.

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The core of a transformer is laminated as