Let εR = 4.48 and σ = 0. Use Maxwell's equations to find E(t=6.72, z=86) given that H = 7cos(13t - 0.02z) ay A/m.

4. Derive the maxwell equations for U, H, G and A Table 6.2.1: Maxwell Relations Function U H A G Differential dU = TdS-pdV dH = TdS + Vdp dA=-pdV - SdT dG = Vdp - SdT Natural Variables S, V S, P V, T P, T Maxwell Relation (or)--( др as V (37), = (35), as (OP), - (OV), = V (3r), - - (35), = T

The electric field has been measured to be horizontal and to the right everywhere on the closed box as shown in the figure below. All over the left side of the box Ej = 107 V/m, and all over the right (slanting) side of the box E2 = 358 V/m. On the top the average field is E3 = 160 V/m,on the front and back the average field is E4 = 180 V/m, and on the bottom the average field is E5 = 200 V/m. E3 E1 12 cm E2 E4 5 cm Es 18 cm How much charge is inside the box?

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