Three Wires

When the applet has loaded, Start.


The animation above shows a cross section of three wires carrying unknown currents.

You can:

  • double-click anywhere inside the animation to draw a magnetic field line, and
  • click-drag the wires to reposition them (however, this will erase any field line that you have drawn).


Which wires are carrying current out of the plane of the simulation, that is, out of the computer monitor screen? Is it possible to determine this? Explain.

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