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The potential of a coaxial cylinder with charge density 1 unit , inner radius 1m and outer cylinder 2m is (in 10^9)(a) 12.74(b) 13.47(c) 12.47(d) 13.74This question was posed to me in final exam.I need to ask this question from Gauss Law topic in section Electrostatic Fields of Electromagnetic Theory

Answer»

Correct option is (c) 12.47

To ELABORATE: The potential of a coaxial cylinder will be ρl ln(b/a)/2πε, where ρl = 1, b = 2M and a = 1m. We GET V = 12.47 X 10^9 VOLTS.



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