If the plates of a parallel plate capacitor are not equal in area, then

let us consider a parallel plate of capacitor with plates of width b and length l . the distance between the plates is d. find the force acting on the smooth dielectric slab i) when the battery is disconnected after charging the capacitor . ii) when the battery remains connected.

A parallel plate capacitor has plate of length ‘l’, width ‘w’ and separation of plates is ‘d’. It is connected to a battery of emf V. A dielectric slab of the same thickness ‘d’ and of dielectric constant k = 4 is being inserted between the plates of the capacitor. At what length of the slab inside plates, will the energy stored in the capacitor be two times the initial energy stored?

A parallel plate capacitor with plate area A and separation between the plates d, is charged by a constant current I. Consider a plane surface of area A/2 parallel to the plates and drawn between the plates . The displacement current through the area is

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