Three identical metallic plates, each of area A, are kept at small separations as shown. Initially, charge Q, 3Q and 3Q are given to the plates A, B and c, respectively. Now, both the switches `S_(1)` and `S_(2)` are closed simultaneously. Then Charge flown through `S_(1)` and `S_(2)` are

Three concentric spherical conducting shells A, B and C of radii a, 2a and 4a are initially given charges +Q, -2Q and +Q respectively. The charge on the middle spherical shell B after switches S_(1) and S_(2) are simultaneously closed, will be

Three concentric spherical conducting shells A, B and C of radii a, 2a and 4a are initially given charges +Q, -2Q and +Q respectively. The charge on the middle spherical shell B after switches S_(1) and S_(2) are simultaneously closed, will be

Three parallel metalic plates each of area A are kept as shown in figure and charges q_1,q_2 and q_3 are given to them. Find the resulting charge distribution on the six surfaces, neglecting edge effects as usual,

Three parallel metalic plates each of area A are kept as shown in figure and charges q_1,q_2 and q_3 are given to them. Find the resulting charge distribution on the six surfaces, neglecting edge effects as usual,

Three identical metal square plates of surface area A of each side is arranged as shown in the figure.Plates 1 2 and 3 are given charges +20, -Q and -Q respectively. Find out the correct options A) Charge on the two faces of the middle plate are -2Q and Q B) Charge on the two faces of the middle plate are -Q and 0 C) Charge on the two faces of the left most plate are zero and 2Q D) Charge on the two faces of the right most plate are -Q and zero

Three identical plates of area A are arranged as shown. A charge +Q is given to plate ( 2 ). Then,

The following diagram shows three metal balls Ball A is charged to Q coulombs and B,C are unchanged .The charges on balls B,C when the switches S_(1) and S_(2) are closed are respectively