Figure shows four charges q1, q2, q3 and q4 fixed in space. Then the total flux of electric field through a closed surface S, due to all charges q1, q2, q3, and q4 is :
not equal to the total flux through S due to charges q3 and q4.
equal to the total flux through S due to charges q3 and q4.
zero if q1 + q2 = q3 + q4
twice the total flux through S due to charges q3 and q4 if q1 + q2 = q3 + q4
Solution:
Gauss's law states that the total electric flux passing through a closed surface is equal to the charge enclosed within the surface divided by the permittivity of the medium.
In short: The net electric field around a closed surface depends on the charge inside it.
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