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A hallow cylinder of resistivity p, inner radius R, outer radius 2R and length l is as show in figure. what is the net resistance between the inner and outer surface ? |
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Answer» A hollow cylinder has length L and inner and outer radii a and b. It is made of a material with resistivityρρ. A potential difference is set up between the inner and outer surfaces of the cylinder, each of which is an equipotential surface) so that current flows radially through the cylinder. What is the resistance to this radial current flow? THIS IS A GENERAL FORMULA DERIVATION for RESISTANCE IN THIS CASE. substitute the given value of respective radii and get the solution. |
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