Hello everybody! I have some trouble determinating the magnetic field generated by a circular loop of current. I'd use it as an approximation for the poloidal field in a Tokamak (field generated by the current in the plasma). I tried using Biot-Savard's Law but I'm getting stuck... I hope to get an answer soon greets ramses P.S. I'm not looking for the field in the middle of the current loop, I need the whole description vector field.