Vacuum Magnetic Permiability

Constant: Vacuum Magnetic Permiability

The vacuum magnetic permiability ${\mu }_0$ is a fundamental constant of nature which characterises the strength of the magnetic field in a vacuum.

$${\mu }_0=1.25663706127(20)\times 10^{-6}\frac{\mathrm{N}}{{\mathrm{A}}^2}$$