Do not do number 2 A long cylindrical conductor shell has a uniform positive cha

Question

Do not do number 2

A long cylindrical conductor shell has a uniform positive charge distribution per unit length, +2lambda and with Inner radius r and the outer radius 2r. A long wire (with the same length as the cylinder) with positive linear charge distribution of +lambda is placed along the axis of the cylinder. The ratio of the surface charge density on the Inner to the outer surface of the cylinder is Fig 1 shows a semicircular conductor with Inner radius R and radial thickness delta R and the net charge of zero (Fig 1). There is a point charge Q at the center of the conductor. The direct source of the ECG is

Explanation / Answer

surface charge density = sigma/2e0 = L/2eo r

option a

sigma in /sigms out = 3/2

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