Each plate of a parallel plate capacitor has a charge `q` on it. The capacitor is now connected to a battery. Now,

A parallel plate capacitor has plate A and separation d between the plates. The capacitor is connected to a battery of emf V . (a) find the charge on the capacitor. (b) the plate separation is decreases to d//2 . Find the extra charge given by the battery to the positive plate. (c) work done in reducing separation between plates.

A parallel plate capacitor has plate A and separation d between the plates. The capacitor is connected to a battery of emf V . (a) find the charge on the capacitor. (b) the plate separation is decreases to d//2 . Find the extra charge given by the battery to the positive plate. (c) work done in reducing separation between plates.

Space between the plates of a parallel plate capacitor is filled with a dielectric slab. The capacitor is charged and then the supply is disconnected to it. If the slab is now taken out then

A parallel plate capacitor has a capacity 80 xx 10^(-6) F, when airs present between the plates. The volume between the plates is then completely filled with a dielectric slab of dielectric constant 20. The capacitor is now connected to a battery of 30 V by wires. The dielectric slab is then removed. Then, the charge that passes now through the wire is