Conservation Laws, Electrodynamics, Poynting Vector, Poynting Theorem, Physics.
electrodynamics. Further, it leads us to the description of an essential physical quantity in the context of electrodynamics, viz. the Poynting Vector. Energy transported by the electromagnetic field per unit area, per unit time is known as the Poynting Vector. S ≡ (1/µ₀) (E × B) = (E × H)