Permeability Of Free Space Symbol

The permeability of free space is called permeability constant and has the value m 0 410 7 hm it is a scalar quantity of isotropic medium and second rank tensor for anisotropic medium.

Permeability of free space symbol. Permeability of free space synonyms permeability of free space pronunciation permeability of free space translation english dictionary definition of permeability of free space. On 20 may 2019 a revision to the si system went into effect. The magnetic constant can be defined as the the value of magnetic permeability in a classical vacuum. The material is said to be diamagnetic if its magnetic permeability is less than m.

N the permeability of free space which has the value 4p 107 henry per metre. Until 20 may 2019 the magnetic constant had the exact defined value m 0 4 p 10 7 hm 1257 10 7 hm. Permeability is measured in henries per metre hm and its symbol is. Since empty space has a constant permeability called the permeability of free space or m 0 displaystyle mu 0 of exactly 00000004 p displaystyle 00000004times pi most materials are listed with a relative permeability symbol m r displaystyle mu r.

Magnetic permeability plays an important role in classifying the magnetization property of a material. The permeability of free space is also called the vacuum permeability or a magnetic constant. The permittivity of free space e 0 is a physical constant used often in electromagnetism. It is also connected to the energy stored within an electric field and capacitance.