**Problem Type:**

A plane problem of AC magnetic field.

**Geometry:**

**Given:**

Conductivity of rail *σ* = 3.3·10^{7} S/m;

Current in the inductor wiring *I* = 2608 A;

Frequency *f* = 50 Hz.

**Solution:**

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.