Magnetic Susceptibility
Magnetic susceptibility (χ) is a dimensionless quantity that indicates how much a material will become magnetized in response to an applied magnetic field.
Magnetic Susceptibility is a key parameter in understanding magnetic properties of materials, as it shows the degree of magnetization a material obtains in response to an applied magnetic field.
Relation between Magnetic Permeability and Susceptibility
The relationship between magnetic susceptibility (χ), absolute magnetic permeability (μ), and the permeability of free space (μ0) is given by the equation:
μ = μ0(1+χ)
Note: Magnetic Susceptibility can help us find the nature of material i.e.,
| Material Type | Magnetic Susceptibility (χ) |
|---|---|
| Diamagnetic | < 0 (e.g., -9.05 x 10−6 for Copper) |
| Paramagnetic | > 0 and small (e.g., 2.2 x 10−5 for Aluminum) |
| Ferromagnetic | >> 0 and variable (e.g., 60 for Iron under specific conditions) |
Magnetic Permeability
Magnetic Permeability is a fundamental concept in electromagnetism that describes how a material responds to the influence of an external magnetic field. The term was introduced by Oliver Heaviside in 1885, marking a significant contribution to the understanding of electromagnetic phenomena.
Magnetic permeability is essentially the ability of a material to allow the passage of magnetic lines of force. This property determines the material’s capacity to support and allow the passage of magnetic flux through it. In this article, we will discuss all the topics related to the concept of Magnetic Permeability.