Diamagnetism | MCQs

Explanation

Paramagnetic compounds are attracted by a magnetic field.

Due to the presence of unpaired electrons.

Explanation

Ferromagnetic materials (such as iron, cobalt, and nickel) have a strong attraction to magnetic fields and can retain their magnetism even after the external magnetic field is removed.

This property makes them ideal for making permanent magnets.

• Diamagnetic materials are repelled by magnetic fields and cannot retain magnetism.

• Paramagnetic materials are weakly attracted to magnetic fields but do not retain magnetism after the external field is removed.

Explanation

• Substances with permeability less than that of free space (μ₀) are called diamagnetic materials.
• These materials are weakly repelled by magnetic fields and have a relative permeability (μr) less than 1.