The area is infinite. All forces have "carrier particles" that implement them. Electromagnetic fields are a phenomenon created by photons. According to the laws of quantum mechanics, the area affected by a force particle with no mass is infinite.
Gravity is another example of an infinite force. There is nowhere in the universe that a small gravitational or electromagnetic field cannot reach you.
the area of magnetic force around a magnet is called the magnetic field
The area around a magnet where its magnetic force is felt is called the magnetic field.
The magnetic force of a magnet is called magnetism.
magnetic field. This is the area around a magnet where its magnetic influence or force can be detected or felt.
The area around a magnet that has the force of magnetism is called the magnetic field. The magnetic field is the region where the magnetic force produced by the magnet can influence other objects or materials.
The area of magnetic force is called a magnetic field. It is a region around a magnet or current-carrying wire where magnetic forces are experienced.
The volume surrounding a magnet will be filled with the lines of magnetic force. Since these are similarly polarized, they repel each other - eventually creating a sphere at a sufficiently large distance. This sphere is the magnetic field of that magnet.
The area surrounding a magnet where its force can be felt is called the magnetic field. This field extends outward from the magnet, allowing objects within its range to be influenced by its magnetic force.
A Magnetic Force
The area of a magnet with the strongest magnetic effect is typically the poles, specifically the tips of the magnet where the magnetic field lines are most concentrated and the magnetic force is strongest.
Magnetic domains are microscopic areas of a solid where the atoms all have their magnetic moments aligned. If these domains are randomly aligned then a ferromagnetic material like iron or nickel will not have any permanent magnetism. If these domains start to align with each other the bulk material will show permanent magnetism. The area around a magnet where the force acts is the magnetic field.
Magnetosphere