Three identical large metallic plates are placed parallel to each other at a very small separation as shown in. The central plate is give a charge Q. What amount of charge will flow to earth when the key is pressid?
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A and B are two large identical thin metal plates placed parallel to each other at a small separation. Plate A is given a charge Q. (i) Find the amount of charge on each of the two faces of A and B. (ii) Another identical plate C having charge 3Q is inserted between plate A and B such that distance of C from B is twice its distance from A. Plate A and B is shorted using a conducting wire. Find charge on all six faces of plates A, B and C. (iii) In the situation described in (ii) the plate A is grounded. Now write the charge on all six faces.

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

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 identical metallic plates are kept parallel to one another at a separation of a and b The outer plates are connected by a thin conducting wire and a charge Q is placed on the central plate Find final charges on all the surfaces of the three plates. [faces(1) Q/2,(2) -(Qb)/(a+b),(3) (Qb)/(a+b),(4)(Qa)/(a+b),(5)-(Qa)/(a+b),(6)Q/3]

Three identical metallic plates are kept parallel to one another at a separation of a and b. The outer plates are connected by a thin conducting wire and a charge Q and 3Q is placed on the central plate and left plate respectively. Find electric field at P.

Two large plates are given the charges as shown in figure. Now, the left plane is earthed. Find the amount of charge that will flow from the earth to the plate.

Three identical metal plates with large surface areas are kept parallel to each other as shown. The left most is given a charge Q, the right most part a charge -2Q and the middle one remains neutral. Then which is wrong-

Four large metallic plates of area A each are kept parallel to each other with a small separation between them as shown in the figure. A cell of emf V is connected across the two outermost plates through a switch K_(1) . The two inner plates are similarly connected with a cell of emf 2 V through a switch k_(2) Initially both switched are open and the plates, starting form left to right (i.e. number 1 to 4) are given charges Q, 2 Q, - 2Q and - Q respectively. Now answer the following questions The charge appearing on the outer surface of plate -1, when switches K_(1), K_(2) are open