Wolfram Demonstrations Project

Two parallel circular conductors both carry the current

in the same direction. The circles lie parallel to the

plane and both have radius

. The centers of the circles are at

and

. According to the cylindrical symmetry the observation points in the

plane can be taken at

. Each circular conductor is parametrized by the angle

, running from

. The three quantities

are displayed for the five independent variables

. The observation points are described by

and the source by

. Units used are in the CGS system

— the magnetic field in the

direction

— the magnetic field in the

direction

— the magnetic energy density

Contributed by: Franz Krafft

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