List of top Physics Questions on Capacitors and Capacitance

Find effective capacitance between A and B is:

The capacitance of a parallel plate capacitor is 50μF. If the linear dimension of the plates are doubled and the separation between the plates is increased to 4 times, what would be the new value of the capacitor?

A capacitor of capacitance $8\mu\text{F}$ is fully charged by connecting it to a source of $200\text{ V}$. It is then disconnected from the supply and connected to an uncharged capacitor of capacitance $4\mu\text{F}$. The electrostatic energy lost in this sharing process is:

A parallel plate capacitor has capacitance $C$. If a dielectric slab of dielectric constant $K$ and thickness equal to half the plate separation is introduced parallel to the plates, the new capacitance is:

Calculate the energy stored in a \(10\,\mu F\) capacitor charged to \(50\,V\).

A capacitor of \(10\,\mu F\) is charged to \(100V\). Find the energy stored in it.

In the circuit shown in the figure, the potential difference across the 4\(\mu\)F capacitor is

A parallel plate capacitor has a uniform electric field 'E' in the space between the plates. If the distance between the plates is 'd' and area of each plate is 'A', the energy stored in the capacitor is

A capacitor of \(10\,\mu F\) is charged to \(50\,V\). Calculate the energy stored in the capacitor.

An isolated capacitor of capacitance 100 \(\mu\)F is charged to 32 C. If 16 C of charge is discharged from it, then its capacitance value is

When filled with a dielectric, the capacitance C of a capacitor changes by 2C. Then the dielectric constant of the dielectric is

When a capacitor of $9\,pF$ is connected to a battery, the electrostatic energy stored in the capacitor is $18 \times 10^{-8}J$. The quantity of charge stored in the capacitor is:

The capacitance of a capacitor is C when there is air (or vacuum) between its plates. When a dielectric is completely inserted between the plates, the capacitance becomes 2C. Find the dielectric constant of the material.

Find the energy stored in a capacitor of \(10\,\mu F\) charged to a potential of \(50\,V\).

Determine the equivalent capacitance of an infinite circuit formed by repeating identical capacitors of capacitance \(C\).

Calculate the equivalent capacitance of an infinite circuit formed by repeating identical capacitors of capacitance \(C\).

Two parallel plate air capacitors of same capacity ' C ' are connected in parallel to a battery of e.m.f. ' $E$ '. Then one of the capacitors is completely filled with dielectric material of constant ' K '. The change in the effective capacity of the parallel combination is

The potential difference across the (4 \muF) capacitor in the following circuit is

A series combination of $10$ capacitors, each of value ' $C_1$ ' is charged by a source of potential difference ' $4\text{ V}$ '. When another parallel combination of $8$ capacitors, each of value ' $C_2$ ' is charged by a source of potential difference ' $V$ ', it has the same total energy stored in it as in the first combination. The value of ' $C_2$ ' is

The potential difference across the (4 \muF) capacitor in the following circuit is

Two parallel plate air capacitors of same capacity ' C ' are connected in parallel to a battery of e.m.f. ' $E$ '. Then one of the capacitors is completely filled with dielectric material of constant ' K '. The change in the effective capacity of the parallel combination is

In a circuit, the capacitance \( C \) is connected. The effective capacitance of the circuit can be reduced by

A capacitor of capacitance \(4\,\mu F\) is charged to a potential of \(24\,V\) and then connected in parallel to an uncharged capacitor of capacitance \(6\,\mu F\). The final potential difference across each capacitor will be:

A network of capacitors is as shown below. If the voltage supply is \(100\,V\), find the energy stored in the \(6\,\mu F\) capacitor.