Question

write the properties of soft and hard magnetic materials.

Answer 1

HARD MAGNETIC MATERIALS:
♦ Materials which retain their magnetism and are difficult to demagnetize are called hard magnetic materials.

•These materials retain their magnetism even after the removal of the applied magnetic field. Hence these materials are used for making permanent magnets.

• They have large hysteresis loss due to large hysteresis loop area.

• Susceptibility and permeability are low.

• Coercivity and retentivity values are large.





♦ SOFT MAGNETIC MATERIALS:
Soft magnetic materials are easy to magnetize and demagnetize.

•These materials are used for making temporary magnets.

• They have low hysteresis loss due to small hysteresis area.

• Susceptibility and permeability are high.

• Coercivity and retentivity values are less.

HOPE IT HELPS..

Answer 2

Answer:

Properties of Soft Magnetic Materials

• Utmost permeability.
• Slight coercive force.
• Small hysteresis loss.
• Small remanent induction.
• High saturation magnetisation.

Properties of Hard Magnetic Materials

• Utmost retentivity and coercivity.
• Value of energy product (BH) will be large.
• The shape of BH loop is nearly rectangle.
• High hysteresis loop
• Small initial permeability.

____________________________________❣

Jannat ❤