Five charges , and are fixed at their positions as shown …

Physics Electric Charges and Fields NCERT Exampler MCQ (Single Correct)

Five charges , and are fixed at their positions as shown in Figure, S is a Gaussian surface. The Gauss's law is given by . Which of the following statements is correct?

E on the LHS of the above equation will have a contribution from

and

while q on the RHS will have a contribution from

and

only

E on the LHS of the above equation will have a contribution from all charges while q on the RHS will have a contribution from

and

only

E on the LHS of the above equation will have a contribution from all charges while q on the RHS will have a contribution from

and

only

Both E on the LHS and

on the RHS will have contributions from

and

only

Text Solution

Verified by Experts

The correct answer is:

According to Gauss's law, the term on the right side of the equation , includes the sum of all charges enclosed by the surface.
The charges may be located anywhere inside the surface, if the surface is so chosen that there are some charges inside and some outside, the electric field on the left side of equation is due to all the charges, both inside and outside S . So, E on LHS of the above equation will have a contribution from all charges while on the RHS will have a contribution from and only.