Electromagnetic energy bulk (volume) density
$$W = \frac{\varepsilon0\cdot \varepsilon\cdot E^{2}}{2}+\frac{B^{2}}{2\cdot \mu\cdot \mu0}$$
W - electromagnetic energy bulk (volume) density
ε0 - permittivity constant
ε - dielectric constant (permittivity)
E - electric field
B - magnetic induction
μ - relative magnetic permeability
μ0 - magnetic constant
ε0 - permittivity constant
ε - dielectric constant (permittivity)
E - electric field
B - magnetic induction
μ - relative magnetic permeability
μ0 - magnetic constant
Find
It is known that:
= 