Three identical parallel conducting plates A, B and C are placed as shown. Switches `S_1 and S_2` are open, and can connect A and C to earth when closed. +Q charges is given to B.

A,B,C and D are identical, parallel , conducting plates arranged as shown, with equal separations between consecuting plates. A and D are connected to a cel. If B is now connected to C , which of the following will occur?

A,B,C are identical, parallel conducting plates arranged at equal separation B lies between A and C . A and C are joined together and connected to one terminal of a cell. B is joined to the other terminal of the cell. A and C now have charge Q each. B has charge q

Three identical conducting plates are arranged as shown in figure and they are given charges as indicated.When switch S is closed,the amount of charge flown through the switch is

Three long conducting plates A, B and C having charges +q, -2q , and +q as shown in figure. Here plate A and C are fixed. If the switch S is closed. The middle plate (B) will start moving in

Three identical metallic plates are kept parallel to one another at separations a and b. The outer plates are connected to the ground and the middle plate is given charge Q. Then, the charge on the right side of middle plate is

Three large plates A, B and C are placed parallel to each other and charges are given as shown. The charge that appears on the left surface of plate B is