Magnetism

Magnetism is a fundamental force in the universe, responsible for the attraction and repulsion of objects. It is caused by the motion of electric charges, such as the flow of electrons in a wire or the alignment of the magnetic moments in certain materials.

Magnetic Fields

A magnet creates a magnetic field around it, which exerts a force on other magnets or magnetic materials. The region around a magnet where this force can be detected is called the magnetic field.

Magnetic Poles

Every magnet has two poles - a north pole and a south pole. Like poles repel each other, and opposite poles attract each other.

Types of Magnets

There are different types of magnets, including permanent magnets (like the ones on your refrigerator), electromagnets (which are made by wrapping a coil of wire around a core and passing an electric current through the wire), and temporary magnets (which become magnetized when in the presence of a magnetic field).