Energy Density of Magnetic Field

A magnetic field is the magnetic effect of electric currents and magnetic materials. Energy is needed to generate a magnetic field both to work against the electric field that a changing magnetic field creates and change the magnetization of any material within the magnetic field.

The magnetic energy density increases with the square of the magnetic induction.

Formula

QuantityVariable["E", "EnergyDensity"] == Quantity[1/2, "MagneticConstant"^(-1)]*QuantityVariable["B", "MagneticInduction"]^2

symbol	description	physical quantity
E	magnetic energy density	"EnergyDensity"
B	magnetic induction	"MagneticInduction"

Forms

Examples

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External Links

https://en.wikipedia.org/wiki/Magnetic_field

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