Question: A spherical volume having a 2-m radius contains a uniform volume charge density of 1015 C/m 3 . (a) What total charge is enclosed in

A spherical volume having a 2-μm radius contains a uniform volume charge density of 1015 C/m³.

(a) What total charge is enclosed in the spherical volume?

(b) Now assume that a large region contains one of these little spheres at every corner of a cubical grid 3 mm on a side and that there is no charge between the spheres. What is the average volume charge density throughout this large region?

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