Magnetism is a naturally occurring phenomena. In most materials, the magnetic domains are randomly aligned. However, in some cases, they are all aligned to produce a magnet. This creates a magnetic field that extends around the object, moving from North to South. A magnetic field can also be created from a moving charge, or current. The right hand rule is used to visualize this field. When a charge moves through an existing magnetic field, a magnetic force is exerted on it. There are many examples in science and technology that utilize magnetism.