In electromagnetism, permeability is the measure of magnetization produced in a material in response to an applied magnetic field. Permeability is typically represented by the (italicized) Greek letter μ. It is the ratio of the magnetic induction to the magnetizing field in a material.
Permeability is a measure of how easily a fluid, whether a liquid or a gas, can flow through a porous material. This property depends on the material’s internal structure, not the fluid itself. Higher permeability means fluids move through a material more readily.
permeability, capacity of a porous material for transmitting a fluid; it is expressed as the velocity with which a fluid of specified viscosity, under the influence of a given pressure, passes through a sample having a certain cross section and thickness.
On the other hand, Permeability, denoted as μ (mu), characterizes a material's ability to allow magnetic fields to pass through it. Permeability represents how readily magnetic flux can propagate within the material when subjected to a magnetic field.
Permeability describes a material’s inherent capacity to permit the passage of substances through its structure. This property quantifies how easily a medium allows something to traverse it, whether fluids moving through porous solids or magnetic fields interacting with materials.
Electromagnetism and formation of magnetic fields. Permeability is the ability to support formation of magnetic fields in a material. Permeability is measured in H/m (henries/m) or newtons/ampere2(N/A2) .
Absolute permeability denotes the permeability in a porous medium that is 100% saturated with a single-phase fluid. This may also be called the intrinsic permeability or specific permeability.
Permeability is denoted by the Greek symbol "mu" (µ) and is often compared with the magnetic constant of free space (µ0) in theoretical contexts. Scientists also distinguish between permeability and magnetic susceptibility, the latter measuring how different materials respond to magnetic fields.