MHT CET 2024 Physics question

The core used in transformers are laminated to

(A)increase the magnetic field.
(B)increase the level of the magnetic saturation of the core
(C)reduce the residual magnetism in the core
(D)reduce eddy current losses in the coreCorrect

Answer: (D)

Solution

The changing flux in a transformer core induces circulating eddy currents in the core material, which dissipate energy as heat ( loss). Making the core from thin insulated laminations (sheets) breaks up the conducting paths and increases the resistance to eddy

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Question ID VK-095410