MHT-CET

24. Electromagnetic Induction question bank (Physics)

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Q1.

Metal rings $P$ and $Q$ are lying in the same plane where current $I$ is increasing steadily. The induced current in the metal rings is shown correctly in which figure?

figure

(A)
opt-fig
(B)
opt-fig
(C)
opt-fig
(D)
opt-fig
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Q2.

The core used in transformers and other electromagnetic devices is laminated to

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