The magnetic constant is used for calculating the strength of the magnetic field. The translation of electromagnetic units into MKS units gives the magnetic constant the magnitude and dimensions of the Planck force.
The simple form of the magnetic constant is
The Planck force also appears in the electric constant, Einstein gravitational constant, and Newton’s constant of gravitation.
The elementary form of the magnetic constant is
Electromagnetic unit conversion
The translation of electromagnetic units and dimensions into MKS units gives the following conversion factor for ampere:
| EM unit | Symbol | Conversion | MKS units |
|---|---|---|---|
| ampere | A | 2.874 495 x 10-26 | dimensionless |
Full table of electromagnetic unit conversions