The ratio of charge on left surface of plate A to the charge on the right surface of plate B is +Q +3Q -20 (A) (B) (C)

Three metallic isolated plates are given charges as shown in figure, the sum of the charges on the outer surfaces of the two plates ( 1 ) and ( 3 ) is (where -3Q and 4Q are total charges of plates ( 1 ) and ( 3 ) respectively.)

Two large parallel conducting plates of net charge 2Q and -Q are placed in a uniform external electric field (Q)/(2Aepsilon_(0)) prependicular to plates as shown. The surface area of each plates is A. The charge on the left surface of the left plate and right surface of the right plate are respectively.

Some isolated metal plates with large surface areas are kept parallel to each other and total charges on each plate are as shown. Find the charge appearing on the surfaces of plates. (a)

In the figure shown below ,the charge on the left plate of the 10_mu F capacitor is -30 mu C. The charge on the right plate of the 6 mu ,F capactior is :

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 charged conducting plates are separated by small distances as shown in figure. The charges on the plates are shown. Find the ratio of charge on right surface and left surface of the middle plate.

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

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 If K_(1) is closed and K_(2) is open the charge appearing on the right surface of plate-2 is

A parallel plate capacitor has capacitance C. If the charges of the plates are Q and -3Q , find of the i. charges at the inner surfaces of the plates ii. Potential difference between the plates iii. charge flown if the plates are connected iv. energy lost by the capacitor in (iii.) v. charge flown if any plate is earthed.

A dielectric slab is inserted between the plates of a capacitor. The charge on the capacitor is Q and the magnitude of the induced charge on each surface of the dielectric is Q' .