A900pF capacitor is charged by 100 V sources .Calculate the electrostatic energy stored in the capacitor .The capacitor is then disconnected from the source and connected to another uncharged 900pF capacitor . Find the common potential of the system ?

(a) A 900 pF capacitor is charged by 100 V battery [Fig. 2.31(a)]. How much electrostatic energy is stored by the capacitor? (b) The capacitor is disconnected from the battery and connected to another 900 pF capacitor [Fig. 2.31(b)]. What is the electrostatic energy stored by the system?

A 12pF capacitor is connected to a 50V battery. How much electrostatic energy is stored in the capacitor?

A 400 pF capacitor charged by a 100 V dc supply is disconnected from the supply and connected to another uncharged 400 pF capacitor calculate the loss of energy

A 600pF capacitor is charged by a 200V supply. It is then disconnected from the supply and is connected to another uncharged 600 pF capacitor. How much electrostatic energy is lost in the process?

The plates of a parallel plate capacitor have an area of 100 cm^(2) each and are separated by 3mm. The capacitor is charged by connecting it to a 400 V supply. (a) Calculate the electrostatic energy stored in the capacitor. (b) If a dielectric of dielectric constant 2.5 is introduced between the plates of the capacitor then find the electrostatic energy stored and also change in the energy stored.

A capacitor of capacitance 5 muF is charged to potential of 500 V. Then it is disconnected from the battery and connected to uncharged capacitor of capacitance 3 muF . Calculate the common potential, charge on each capacitor and the loss of energy.

Two capacitors of 10 PF and 20 PF are connected to 200 V and 100 V sources respectively. If they are connected by the wire, what is the common potential of the capacitors ?