A parallel-plate capacitor is filled with a delectric meterial having resistivity`(rho)`and dielectric constant K.The capcitor is charged and disconnected from the charging source. The capacitor is slowly discharged through the dielectric.Show that the time constant of the discharge is independent of all gepmetrical parameters like the plate area or separation between the plates. Find this time constant.

A parallel plate capacitor is charged to a certain voltage. Now if the dielectric material (with dielectric constant k ) is removed then the

Half of the space between the plates of a parallel-plate capacitor is filled with a dielectric material of dielectric constant K. The remaining halt contains air as shown in the figure. The capacitor is now given a charge Q. Then

In a parallel plate capacitor, the region between the plates is filled by a dielectric slab. The capacitor is charged from a cell and then disconnected from it. The slab is now taken out :

A parallel plate capacitor carries a harge Q. If a dielectric slab with dielectric constant K=2 is dipped between the plates, then

The space between the rectangular plates (with sides a and b ) of a parallel-plato capacitor (the distance between the plates is l) is filled with a solid dielectric whose dielectric constant is c. The capacitor is charged to a certain potential difference and disconnected from the voltage source. After that the dielectric is slowly moved out of the capacitor, which lTIOanS that the section x not filled with the dielectric gradually increases in size. How wi ll the potential difference between the plates and the surface charge densities on both parts of the capacitor (with and without the dielectric) change in the process?

A parallel - plate capacitor, filled with a dielectric of dielectric constant k, is charged to a potential V_(0) . It is now disconnected from the cell and the slab is removed. If it now discharges, with time constant tau , through a resistance, then find time after which the potential difference across it will be V_(0) ?

A parallel- plate capacitor, fileld with a dielectric of dielectric consatnt k , is charged to a potential V_(0) . It is now disconnected from the cell and the slab is removed. If it now discharges, with time constant tau , through a resistance then find time after which the potential difference across it will be V_(0) ?