A magnetic field is a physical field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets. In addition, a nonuniform magnetic field exerts minuscule forces on "nonmagnetic" materials by three other magnetic effects: paramagnetism, diamagnetism, and antiferromagnetism, although these forces are usually so small they can only be detected by laboratory equipment. Magnetic fields surround magnetized materials, electric currents, and electric fields varying in time. Since both strength and direction of a magnetic field may vary with location, it is described mathematically by a function assigning a vector to each point of space, called a vector field.
A magneticfield (sometimes called B-field) is a physical field that describes the magnetic influence on moving electric charges, electric currents,: ch1
electric charges. The field at any point in space and time can be regarded as a combination of an electric field and a magneticfield. Because of the interrelationship
an article on: magnetic energy Wikipedia magnetic energy (plural magnetic energies) (physics) The potential energy of a magneticfield. potential energy
on: magnetic flux Wikipedia magnetic flux (countable and uncountable, plural magnetic fluxes) (physics) A measure of the strength of a magneticfield in
The Earth's magneticfield (or geomagnetic field) is the magneticfield generated by a self-exciting dynamo in planet Earth’s fluid outer core. The Earth’s
revolved when placed in a magneticfield, he decided that the whole earth was a magnet, that gravity was a form of magnetic attraction, and that the principles
electromagnetic force usually exhibits an electromagnetic field, such as an electric field, magneticfield, or light. The remaining known fundamental interactions