dextercioby said:First of all B and H are not the same thing. Next comes the problem with units. Please, read here http://en.wikipedia.org/wiki/Magnetic_field
Magnetic energy is the energy stored in a magnetic field, which is created when electric charges are in motion. It is one of the fundamental forms of energy and is responsible for many phenomena, such as magnetism and electricity.
Magnetic energy can be calculated using the formula B^2/2u or H^2/8pi, where B is the magnetic flux density, u is the permeability of the medium, and H is the magnetic field strength. This formula represents the energy stored in a given volume of space due to the magnetic field.
Both B^2/2u and H^2/8pi represent the same concept of magnetic energy, but they differ in the quantities used in the formula. B^2/2u is used to calculate the energy stored in a magnetic field in terms of magnetic flux density, while H^2/8pi is used to calculate the energy in terms of magnetic field strength.
Magnetic energy is closely related to electromagnetism, as both are forms of energy that arise from the interaction of electric charges. Electromagnetism is the branch of physics that studies the relationship between electricity and magnetism, and magnetic energy is one of the manifestations of this relationship.
Magnetic energy has many practical applications in our daily lives. It is used in motors, generators, transformers, and other electrical devices. It is also used in medical imaging, such as MRI machines, and in transportation systems, such as maglev trains. Additionally, magnetic energy is being explored as a potential source of renewable energy through technologies like magnetic levitation wind turbines.