Correct Answer - Option 1 : Material X is diamagnetic and Y paramagnetic.
Explanation:
|
Material
|
Magnetic Susceptibility (Xm)
|
Relative Permeability
(Km = 1 + Xm)
|
Magnetic Permeability
(μm = Kmμ0)
|
|
Diamagnetic
|
-10-5 to -10-9
|
< 1
|
μm < μ0
|
|
Paramagnetic
|
10-5 to 10-3
|
> 1
|
μm > μ0
|
|
Ferromagnetic
|
≫ 1
|
≫ 1
|
μm ≫ μ0
|
From the above table, we can consider that material X is diamagnetic and material Y is paramagnetic.
Paramagnetic Substances: The substances which are weakly magnetized when placed in an external magnetic field, in the same direction of the applied field are called paramagnetic substances.
Example: Sodium, aluminum, calcium, manganese, platinum
Properties:
- These substances are attracted by a magnet
- Atomic orbitals of these substances are partially filled
- It develops weak magnetization in the direction of the applied magnetic field
- After removing the magnetizing field, it loses its magnetization
- When placed in a non-uniform magnetic field, it tends to move from weaker to stronger regions of the magnetic field
- When placed in a uniform magnetic field, it aligns itself in the direction of the magnetic field
- Magnetic susceptibility is a small positive value
- Relative permeability is close to one and always greater than 1
- Magnetic permeability is slightly more compared to free space
