How magnets work
Magnets are used for many things like a play ground like a pole, and a slide and many more. Magnets attract iron some times it repels on some pole. In the computers there so much iron. magnetic field is a region around a magnetic material or a moving electric charge. within witch force of magnetism act. There for it is very important because that how electronics work.
The Science Behind Magnets: How do they Work? - Stuff to Blow Your Kids' Mind