| DESCRIPTION:
A simulation of the magnetic field generated by a current
element. The observation point (black sphere) can be
moved using the arrow keys to sample the field at different
positions relative to the current element. The red arrow
at the current element and the transparent red arrow
at the observation point indicate the direction of current
flow. The transparent orange arrow at the observation
point indicates the direction from the current element
to the observation point. The blue arrow represents
the magnetic field at the observation point.
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