(a) Derive an integral expression for the charge density (, z) induced on the outer surface of...
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(a) Derive an integral expression for the charge density σ(φ, z) induced on the outer surface of a conducting tube of radius R when a point charge q is placed at a perpendicular distance s > R from the symmetry axis of the tube.
(b) Confirm that the point charge induces a total charge −q on the tube surface.
(c) Show that the angle-averaged linear charge density falls off extremely slowly with distance along the length of the tube. Specifically, show that, as z→∞,
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