Question: Volume charge density is located in free space as = 2e 1000r nC/m 3 for 0 < r < 1 mm, and

Volume charge density is located in free space as ρν = 2e−1000r nC/m3 for 0 < r < 1 mm, and ρν = 0 elsewhere.

(a) Find the total charge enclosed by the spherical surface r = 1 mm.

(b) By using Gauss’s law, calculate the value of Dr on the surface r = 1 mm.

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