1. The problem statement, all variables and given/known data Four identical metallic plates, each of area A, are seprated by a distance d as showen in the Figure. Plate 2 is given a charge Q. Plates 1 and 4 Both are earthed. 2. Relevant equations Charge Distribution i.e. Charge on each Plate and On each Side of the Plate. Will the Outer Surface(Earthed Surface) of the Plates 1 and 4 be having Zero Charge on Them. 3. The attempt at a solution I really Could not figure out as the Earthed Plates are Confusing Me. I have done similar question where the None of the Plates are Earthed. I tried to start on the same Lines, But ended up confusing myself more. So It will be really Great if I get a good Explanation for this. Thanks in Advance. Cheers.