Home
Class 12
PHYSICS
A parallel-plate capacitor is connected ...

A parallel-plate capacitor is connected to a cell. Its positive plate `A` and its negative plate `B` have charges `+Q` and `-Q` respectively. A third plate `C`, identical to `A` and `B`, with charge `+Q`, is now introduced midway between `A` and `B`, parallel to them. Which of the following are correct?

A

The charge on the inner face of `B` is now `-(3Q)/(2)`

B

There is no change in the potential difference between `A` and `B`.

C

The potential difference between `A` and `C` is one-third of the potential difference between `B` and `C`.

D

The charge on the inner face of `A` is now `Q//2`.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
After redistribution half of total charge remains on outer surface and then apply conservation of charge on each plate. Find distribution of charge is
Promotional Banner

Similar Questions

Explore conceptually related problems

Plates a and B constitutes an isolated, charge parallel plate capacitor. The inner surface (I and IV) of A and B have charge +Q and -Q respectively. A third plate C with charge +Q is now introduced midways between A and B. Which of the following statement is not correct?

A parallel plate capacitor is charged from a cell and then isolated from it. The separation between the plates is now increased

A parallel-plate capacitor is charged from a cell and then disconnected from the cell. The separation between the plates is now double.

When a dielectric is introduced between the plates of a charged parallel plate capacitor, whichi one of the following will not change?

A parallel plate capacitor having area A is given a charge + q and -q on its plates, Two plates exert force of attraction given by.........

In a parallel plate capacitor with plate area A and charge Q, the force on one plate because of the charge on the other is equal to

An isolated parallel-plate capacitor of capacitor C has paltes X and Y. If plate X is given charge Q, the potential difference between X and Y Is

A parallel plate capacitor having plate area A and separation between the plates d is charged to potential V .The energy stored in capacitor is ....???