The uniform electric field E in the air outside the plane boundary of an LIH dielectric material is at an angle of 30° to the normal to the boundary, as shown in Figure 2. The relative permittivity e of the dielectric is 3.0. Find the angle that the electric field in the dielectric makes with the normal. Clearly state any boundary conditions that you use. 30° Eair air dielectric € = 3.0
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