Figure shows a capacitor having three layers of equal thickness and same area as that of its plates. Layer-I is free space, Layer-II is a conductor and Layer-Ill is a dielectric of dielectric constant `k`. Calculate the ratio of energy stored in region III to total energy stored in capacitor when a potential difference is applied across the plates of capacitor.

The displacement current flows in the dielectric of a capacitor when the potential difference across its plates-

The figure shows a capacitor having three dielectric layers parallel to its plates. Layer x is vacuum, y is conductor and z is a dielectric. Which of the following change(s) will result in increase in capacitance ?

A capacitor between whose plates there is a dielectric with a dielectric constant e is connected to a DC source. How will the energy stored in the capacitor change if the dielectric is removed? Explain the cause of this change.

In the given figure a capacitor having three layers between the plates. Layer x in vaccum, y is conductor, and z is a diselectric. Which of the following charge will result in increase in capacitance?

Figure shows two indentical pallel plate capacitors connected to a switch S. Initially ,the switch is closed so that the capacitors are completely charged .The switch is now opened and the free space between the plates of the capacitors is filled with a dielectric of dielectric constant 3. Find the ratio of the initial total energy stored in the capacitors to the final total energy stored.

A parallel plate capacitor has square plates of side length L. Plates are kept vertical at separation d between them. The space between the plates is filled with a dielectric whose dielectric constant (K) changes with height (x) from the lower edge of the plates as K = e^(betax) where b is a positive constant. A potential difference of V is applied across the capacitor plates. (i) Plot the variation of surface charge density (s) on the positive plate of the capacitor versus x. (ii) Plot the variation of electric field between the plates as a function of x. (iii) Calculate the capacitance of the capacitor.

The space between the plates orf a parallel plate capacitor is completely filled with a meterail of resistaivity 2xx10^(11) Omegam and dielectric constant 6. Capacity of the capacitor with the given dielectric medium between the paltes is 20uF. Find the leakage current if a potential difference 2500 V is applied across the capacitor.