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To practice Problem-Solving Strategy 22.1: Gauss's Law. An infinite cylindrical rod has a uniform volume charge...

To practice Problem-Solving Strategy 22.1: Gauss's Law.

An infinite cylindrical rod has a uniform volume charge density ρ (where ρ>0). The cross section of the rod has radius r0. Find the magnitude of the electric field E at a distance r from the axis of the rod. Assume that r<r0.

a) Find the magnitude E of the electric field at a distance r from the axis of the cylinder for r>r0.

Express your answer in terms of some or all of variables ρ, r, r0, l, and ϵ0.

b)

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