| A | B |
|---|
| magnetic domain | group of atoms with aligned magnetic poles |
| motor | device that converts electric energy into kinetic energy |
| electromagnet | current-carrying wire wrapped around an iron core |
| aurora | light emitted in a display sometimes called "northern lights" |
| generator | uses magnetism to produce electric power |
| transformer | changes the voltage of an alternating current |
| magnetic field | area around a magnet where magnetic force acts |
| alternating | current that changes direction |
| magnetosphere | Earth's magnetic field |
