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In a certain region, the electric field is given by D = 2p(z+1) cos d, p(z + 1) sin p + p cos p,

In a certain region, the electric field is given by D = 2p(z+1) cos d, p(z + 1) sin p + p cos p, iC/m? (a) Find the charge density. (b) Calculate the total charge enclosed by the volume 0 < p < 2, 0 < 6 < T/2, 0

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