
In the figure shown the plates of a parallel plate capacitor have unequal charges. Its capacitance is . is a point outside the capacitor and close to the plate of charge The distance between the plates is .


The potential difference between the plates will be.
The energy stored in the electric field in the region between the plates is


Important Questions on Capacitance
Rows of capacitors containing capacitors, each of capacitanceare connected in parallel as shown in figure. The potential difference across , then

The figure shows a diagonal symmetric arrangement of capacitors and a battery. If the potential of is zero, then (All the capacitors are initially uncharged)

Two capacitors of are charged to respectively. The plates of a capacitor are connected as shown in the discharged capacitor of capacity falls to the free ends of the wire and connected through the free ends of the wire, Then :

In the adjoining diagram all the capacitors are initially uncharged, they are connected with a battery as a shown in figure. Then


In the circuit shown in the figure, each capacitor has a capacitance . The emf of the cell is and circuit already in steady-state. If the switch is closed.

Two similar condensers are connected in parallel and are charged to a potential . Now, these are separated out and are connected in series. Then,

We have a combination as shown in the following figure. Choose the correct options.
