Question

Coulomb’s law can be derived from Gauss law. State True/ False (a) True (b) False This question was addressed to me in examination. My question comes from Surface Integral in section Vector Calculus 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

Answer 1

Correct answer is (a) True To elaborate: Gauss law, Q = ∫∫D.ds By considering area of a sphere, ds = r^2sin θ dθ dφ. On integrating, we get Q = 4πr^2D and D = εE, where E = F/Q. Thus, we get Coulomb’s law F = Q1 x Q2/4∏εR^2.