A) \[\oint{E.ds\ne 0}\] on any surface.
B) \[\oint{E.ds={{\varepsilon }_{0}}/q}\] if the charge is outside the surface.
C) \[\oint{E.ds}\] connot not be defined.
D) \[\oint{E.ds=q/{{\varepsilon }_{0}}}\] if charges of magnitude q is inside the surface.
Correct Answer: D
Solution :
Option [d] is correct Explanation: If a charge q is enclosed inside Gaussian surface then according to Gauss law \[\oint{E.ds=q/{{\varepsilon }_{0}}}\].
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