Electromagnetic Field Theory
The statement which is not correct from the following:

 Gauss’s static that divergence of D = ρu.
 An electric flux line is an imaginary path or a line drawn in such a way, that its direction at any point is the direction of electric field at that point.
 Gauss’s law states that total electric flux through any surface is equal to the total charge enclosed by surface.
 For a uniform long charged line with l1 c/m the electric field intensity E is given as E = ρL/(π ε0.r).

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Electromagnetic Field Theory
Which statement does not say that electrostatic field is conservative?

 If is gradient of a scalar potential.
 If the curl of E is identically zero.
 The potential difference between two points is zero.
 The work done in a closed path inside the fields is zero.

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