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Find the electric flux density of a material whose charge density is given by 12 units in a volume region of 0.5 units.(a) 12(b) 24(c) 6(d) 48I got this question in an internship interview.My doubt is from Maxwell Law 3 in division Maxwell Equations of Electromagnetic Theory

Answer»

The correct choice is (c) 6

Easiest explanation: By Gauss LAW, Div(D) = ρv. To GET D, integrate the charge DENSITY given. Thus D = ∫ρv dv, where ρv = 12 and ∫dv = 0.5. We get, D = 12 x 0.5 = 6 units.



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