Wiktionary
n. (context physics English) The potential energy of a magnetic field
Wikipedia
Magnetic energy and electric energy are related by Maxwell's equations. The potential energy of a magnet of magnetic moment, m, in a magnetic field, B, is defined as the mechanical work of magnetic force (actually of magnetic torque) on re-alignment of the vector of the magnetic dipole moment, and is equal:
$$E_{\rm p, m} = -m\cdot B$$
while the energy stored in an inductor (of inductance, L) when current, I, is passing via it is
$$E_{\rm p, m} = {1 \over 2}LI^2$$
. This second expression forms the basis for superconducting magnetic energy storage.
Energy is also stored in a magnetic field. The energy per unit volume in a region of space of permeability, μ, containing magnetic field, B, is:
$$u = {1 \over 2}{B^2 \over \mu}$$
Usage examples of "magnetic energy".
The line was just a Band-sized strand of concentrated magnetic energy that could be tapped merely by moving his substance through it, cutting across it.
At five second intervals they were projected outward, invisible globes of concentrated magnetic energy, indetectable in space.
Bluefield fought in the fashion she knew best, sending jolt after jolt of magnetic energy through host and aura, disrupting both by associated currents.
But while we can't get that enormous concentration of electrical energy inside the ship, we can store magnetic energy.
The theory was simple: since Homo sapiens had evolved in the earth's magnetic field, an MRI's magnetic energy did not pose a health risk.
Certain locations along the planet's surface, especially around the equator, are considered power areas, dynamic locations radiating high levels of geothermal, geophysical, or magnetic energy.
Wave after wave of magnetic energy broke over her bow, keeping her from advancing any farther.
In the case of the Temaris crystal, a form of magnetic energy was used to distort the crystal's lattice structure and hold it in place.