A hollow spherical shell with finite thickness carries a total positive charge Q. The charge density in the region a ≤ r

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A hollow spherical shell with finite thickness carries a total
positive charge Q. The charge density in the region a ≤ r ≤ b is
ρ=c/r where c is a constant, a is the inner radius and b is the
outer radius of the hollow spherical shell. Find the electric field
in the region: a < r < b. (express all your answers only in
terms of r, k, Q, a, and b). Note: k is Coulomb’s constant.