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= 2 у Ex В 3. The Poynting vector is defined by S = so that μ, the three vectors E, B, and S are mutually orthogonal to
Posted: Wed May 18, 2022 6:41 am
by answerhappygod
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= 2 у Ex В 3. The Poynting vector is defined by S = so that μ, the three vectors E, B, and S are mutually orthogonal to each other. While, in free space, the total energy density u of the EM wave is a sum of both that of E 1 and of B fields: up = € E and Up B2 where 2μη Em and Bm are the amplitudes of sinusoidal functions of E and B fields, respectively. Show that 1 pto+T ==L*** S(x,t)dt =c{up + ub}avg B: T to LBM, 2 E = = m m т B х 1 = Savg Te = UB