Biot-Savart Geometry

$$ d\vec{B} = \frac{\mu_0}{4\pi} \frac{I d\vec{l}' \times \hatrsep}{\rsep^2} $$

The magnetic field $\vec{B}$ (in Tesla, T) is perpendicular to both the current element $I d\vec{l}'$ and the separation vector $\vecrsep = \vec{r} - \vec{r}'$.

Element Position ($s$) 50%
Current Element ($I d\vec{l}'$)
Unit Sep. Vector ($\hatrsep$)
Field Contribution ($d\vec{B}$)
Observer ($\vec{P}$) - Drag Me!