A plane problem of AC magnetic field.
Conductivity of rail σ = 3.3·107 S/m;
Current in the inductor wiring I = 2608 A;
Frequency f = 50 Hz.
Due to periodicity of the problem, only the 3-slot section is modeled, and the odd periodic boundary condition is applied on the sides.
See the Perio2.pbm problem in the Examples folder.