Question
4.22 Given the electric flux density \mathbf{D}=\hat{\mathbf{x}} 2(x+y)+\hat{\mathbf{y}}(3 x-2 y) \quad\left(\mathrm{C} / \mathrm{m}^{2}\right) determine (a) pv by applying Eq. (4.26), (b) the total charge Q enclosed in a cube 2 m on a side,located in the first octant with three of its sides coincident with the x, y,
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