Physics-Magnetic Properties of Materials

NEET Physics Magnetic Properties of Materials MCQ Question

Type: MCQ-diagram based-Hard-Class 12

Consider a diagram showing a bar of paramagnetic material placed in an external magnetic field B0B_0. Which of the following correctly describes the behavior of the field lines within the material?

Question diagram
A

The field lines are slightly concentrated inside the material.

B

The field lines are completely expelled from the material.

C

The field lines remain unchanged inside the material.

D

The field lines are highly concentrated, increasing by several orders of magnitude.

Correct Answer

Option A

Detailed Explanation

In a paramagnetic material, the external field lines are slightly concentrated inside the material due to the alignment of atomic dipoles, enhancing the field by a small amount, typically one part in 10^5.

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