Magnetism

An electric current that repeatedly reverses its direction of flow. Alternating current is a type of electricity where the flow of electric charge changes direction periodically.

The process of generating a current by moving a conductor through a magnetic field. Electromagnetic induction. Electromagnetic induction is the creation of electric current in a wire when it moves through a magnetic field.

The properties and interactions of magnets. Magnetism. Magnetism is the force that causes certain materials, like iron, to attract or repel each other due to the movement of electric charges.