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A long metal cylinder with radius a is supported on an insulating stand on the axis of a long, hollow,metal tube with radius b. The positive charge per unit length

on the inner cylinder is A, and there isan equal negative charge per unit length on the outer cylinder. Find the potential of the inner cylinder with respect to the outer. Use equation E, av/ar =and the result from part D to find the magnitude of the electric field at any point between the cylinders. What is the potential difference between the two cylinders if the outer cylinder has no net charge?

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