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An electric field on a plane is described by its potential V = 20(r^-1 + r^-2), where r is the distance from the source. The field is due to

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An electric field on a plane is described by its potential V = 20(r^-1 + r^-2), where r is the distance from the source. The field is due to (a) A monopole (b) A dipole (c) Both a monopole and a dipole (d) A quadruple I got this question in an interview. My enquiry is from Advanced and Tricky Questions topic in section Advanced and Tricky Questions of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

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The correct answer is (c) Both a monopole and a dipole To explain I would say: In the potential given, one component is inversely proportional to r, which is due to a monopole and the other component is inversely proportional to r^2, which is due to a dipole.

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