A thin spherical shell of charge having a radius a has a total charge Q. Another

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A thin spherical shell of charge having a radius a has a total charge Q. Another spherical shell of radius b concentric with the first surround it and has a total charge -q. The electric field as a function of r can be deduced from Gauss' Law. Using these variables and k (=8.99e9 Nm^2/C^2) give an expression for the field in the region r < a. a)E = b)Give an expression for the field in the region b >r >a: E = ________ c)Give an expression for the field in the region r > b: E = __________

Explanation / Answer

part 1: A circular path with r

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