For a conservative field which of the following equations holds good?
(a) ∫ E.dl = 0
(b) ∫ H.dl = 0
(c) ∫ B.dl = 0
(d) ∫ D.dl = 0
I got this question in an interview.
I need to ask this question from Boundary Conditions topic in section Electric Fields in Material Space of Electromagnetic Theory