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- Issue with COMSOL 5.5 when trying to calculate the magnetic field produced by linear current in 3D

Hello,

I have used an edge current of 10 A through a 0,45 cm (lenght) wire inside an air sphere. The thing is that, according with Ampere law, the magnetic field (B) produced at a 1 mm of distance from the wire shall be 0,002 T, and I am obtaining much higher values in this simulation (around 0,3 T at his point).

I have done it in 2D and result is OK, according with theoretical values, but I do not know why in 3D it changes. Any idea please?

Many thanks in advance

I have used an edge current of 10 A through a 0,45 cm (lenght) wire inside an air sphere. The thing is that, according with Ampere law, the magnetic field (B) produced at a 1 mm of distance from the wire shall be 0,002 T, and I am obtaining much higher values in this simulation (around 0,3 T at his point).

I have done it in 2D and result is OK, according with theoretical values, but I do not know why in 3D it changes. Any idea please?

Many thanks in advance