Magnetic Properties of Materials

How do diamagnetic materials behave when placed in an external magnetic field?

• They strongly attract magnetic field lines.

• They slightly attract magnetic field lines.

• They repel magnetic field lines.

• They do not interact with magnetic field lines.

What happens to the magnetic field lines inside a paramagnetic material when an external magnetic field is applied?

• The field lines become less dense inside the material.

• The field lines become slightly more dense inside the material.

• The field lines are completely expelled from the material.

• The field lines remain unchanged inside the material.

Which type of material experiences an extremely strong induced magnetic field in the same direction as the external field?

• Diamagnets

• Paramagnets

• Ferromagnets

• Non-magnetic materials

What is the sign of magnetic susceptibility (χ) for a diamagnetic material?

• Positive and large

• Positive and small

• Negative and small

• Zero

When a diamagnetic material is placed in an external magnetic field, what is the direction of the induced magnetic field within the material?

• In the same direction as the external field.

• Perpendicular to the external field.

• Opposite to the external field.

• There is no induced magnetic field.

Which of the following best describes the magnetic susceptibility of paramagnetic materials?

• Large and negative.

• Small and negative.

• Large and positive.

• Small and positive.

How does the magnetic susceptibility of a ferromagnetic material compare to that of a diamagnetic material?

• Ferromagnetic materials have a large positive susceptibility, while diamagnetic materials have a small negative susceptibility.

• Ferromagnetic materials have a small positive susceptibility, while diamagnetic materials have a large negative susceptibility.

• Both have large positive susceptibilities.

• Both have small negative susceptibilities.

What is the total magnetic field (B) inside a material when an external magnetic field (B₀) is applied, given the material's magnetic susceptibility (χ)?

• B = B₀ - χB₀

• B = B₀ + χB₀

• B = χB₀

• B = B₀ / (1 + χ)