Conservation Laws, Electrodynamics, Poynting Vector, Poynting Theorem, Physics.
Differential Form of Poynting Theorem and the Equation of Continuity From your earlier lectures, you will remember that the energy stored in an electromagnetic field per unit volume is given by ½ (ε₀ E²+ B²/μ₀). Further, from elementary dynamics, we know that the work done is nothing but the change