Because ionized gas conducts electricity well, any magnetic field lines threading the gas are dragged with it as it moves.The field can thus be reworked and sometimes amplified.

• 由于离子气体是电的良导体，任何穿过这团移动气体的磁力线，都会被它拖著跑，磁场因此会重新组织，有时甚至能放大。