The magnetic field is the region around a magnetic material or a moving electric charge within which the force of magnetism acts.
A charge in motion can generate a magnetic field.
In physics we use or as a symbol of the magnetic field.
The SI unit of the magnetic field is Tesla .
The magnetic field emits from the north pole and terminates in the south pole.
Typically a magnetic field can be illustrated in two different ways 6.1 Magnetic Field Vector: The magnetic field can be mathematically described as a vector field. 6.2 Magnetic field lines: Magnetic field lines are an alternative way to represent the information contained within a magnetic vector field. Magnetic field lines are imaginary lines.
When a magnetic field is present, these domains align themselves in the direction of the outside magnetic field, making non-magnetized material into a miniature magnet and two magnets with opposing poles are attracted to one another