In a parallel plate condenser, the radius of each circula plate is `12 cm` ans the distance between the plates is `5mm`. There is a glass slab of `3 mm` thick and of radius `12 cm` with dielectric constant `6` between its plates. The capacity of the condenser will be

The area of the plates of a parallel plate condenser is A and the distance between the plates is 10 mm . There are two dielectric sheets in it, one of dieectirc constant 10 and thickness 6 mm an dthe other of dielectric constant 5 and thickness 4 mm . the capacity of the condenser is

On placing dielectric slab between the plates of an isolated charged condenser its

On placing a dielectric slab between the plates of an isolated charged condenser its -

On placing dielectric slab between the plates of an isolated charged condenser its

In a capacitor of capacitance 20 muF ,the distance between the plates is 2 mm . If a dielectirc slab of width 1 mm and dielectric constant 12 is inserted between the plates, then the new capacitance is

The capacity of a parallel plate condenser is C. When the distance between the plates is halved, its capacity is

To reduce the capacity of a parallel plate condenser, separation between the plates is