These units measure magnetic field, or magnetic flux density, which Primel terms “magnetic force”, typically symbolized , which is force per “quantity of magnetism” or magnetic pole strength.
\mathbf{F}_m = q_0\left(\mathbf{v}_0 \times \mathbf{B} \right) |
\mathbf{B} = \mu_0 \frac{q\mathbf{v} \times \hat{\mathbf{r}}}{\sigma r^2} |
where:
is the force induced by magnetic field
on test charge
that is moving with velocity
is the magnetic field generated by charge
moving with velocity
is the displacement vector to moving charge
is the unit vector in the direction of
is the length of
is the “vacuum inductivity” (vacuum permeability)