Lorentz Force

The force on a current in a magnetic field; what tries to tear a magnet apart.

A conductor carrying current in a magnetic field feels the Lorentz force. In a high-field magnet these forces are immense, producing hoop stresses the structure must contain — the origin of the magnet's fatigue gate.

A current in a magnetic field feels the Lorentz force, and in a high-field magnet those forces are immense, producing hoop stresses the structure must contain. They are the origin of the magnet's fatigue gate: a single cycle is safe, but the cyclic loading of repeated operation is what must be proven for the burner's high-field plug.