Define the intensity of magnetic field.

(N/A) The intensity of the magnetic field at a point is defined as the force experienced by a unit north pole placed at that point.
Mathematically,it is given by $\vec{B} = \frac{\vec{F}}{m}$,where $\vec{F}$ is the magnetic force experienced by a magnetic pole of strength $m$.
The $SI$ unit of magnetic field intensity is Tesla $(T)$ or Weber per square meter $(Wb/m^2)$.