When two identical capacitors are charged individually to different potentials & then connected in parallel, after disconnecting from the source then

When two identical capacitors are charged individually to different potentials and connected parallel to each other, after disconnecting them from the source :

Two identical capacitors are charged to different potentials φ_(1) and φ_(2) relative to the negative earthed electrodes. The capacitors are then connected in parallel (Fig. 24.21). Find the potential of the battery after the connection was made and the change in the energy of the system.

N identical capacitors are connected in parallel which are charged to a potential V . If these are separated and connected in series then what potential difference will be obtained?

n identical capacitors are connected in parallel to a potential difference V . These capacitors are then reconnected in series, their charges being left undisturbed. The potential difference obtained is

n identical capacitors are connected in parallel to a potential difference V . These capacitors are then reconnected in sereis, their charges being left undisturbed. The potential difference obtained is

Six identical capacitors are joined in parallel, charged to a potential difference of 10 V, separated and then connected in series. Then the potential difference between the free plates is

The enrgy of a charged capacitor is U. Another identical capacitor is connected parallel to the first capacitor, after disconnecting the battery. The total energy of the system of these capacitors will be

A parallel plate capacitor is charged to a potential difference V by a d.c. source. The capacitor is then disconnected from the source. If the distance between the plates is doubled, state with reason how the following will change. energy stored in the capacitor.