Two capacitors are in parallel and the energy strored is 45 J, when the combination is raised to a potential of 3,000 V. With the same two capacitors in series, the energy is 4.05 J for the same potential. What are their capacitannces?

A capacitor of capacitance 50 muF is charged to a potential of 1,000 V. Calculate the energy stored in the capacitor.

The potentials of the two plates of capacitors are +10 V and - 10V. The charge on one of the plates is 40 C. the capacitance of the capacitor is

Two capacitors of capacitance C_1 and C_2 and joined in series and this combination is joined in parallel with a capacitor of capacitance C_3 find the resultant capacitance.

When the separation between two charges is increased, the electric potential energy of the system

A capacitor ,made of two parallel plates,each of area A and separaion d,is being charged by an external a.c. surce.show that the displacement current inside the capacitor is the same as the current charging the capacitor.

What is the energy when number of capacitors are placed in series?

Two idential capacitors are joined in parallel, charged to a potential V and then separated and then connected in series i.e. the positive plate of one is connected to negative of the other. Then

A parallel plate capacitor of capacitance C is charged to a potential V. It is then connected to another uncharged capacitor having the same capacitance. Find out the ratio of the energy stored in the combined system to that stored initially in the single capacitor.