Charge density of a cylindrical shell

Suppose that there are an infinitely long straight current-carrying wire and a thin cylindrical shell enveloping it. The linear charge density of the current-carrying wire is \(-3.6 \text{ nC/m},\) and the radius of the cylindrical shell is \(1.5 \text{ cm}\). If the shell has a certain positive surface charge density \(d\) such that the net electric field intensity of the outside of the shell is zero, what is the value of \(d?\)

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