List of top Physics Questions on Combination of capacitors

As shown in the figure, two parallel plate capacitors having equal plate area of 200 cm2 are joined in such a way that a ≠ b. The equivalent capacitance of the combination is x ∈0 F. The value of x is_____.

A parallel plate capacitor has plate area $40\, cm ^2$ and plates separation $2\, mm$ The space between the plates is filled with a dielectric medium of a thickness $1 \,mm$ and dielectric constant $5$ The capacitance of the system is :

In the circuit shown in the figure, the capacitor is initially uncharged and the key K is initially open in this condition, a current of 1 A flows through the 1 Ω resistor. The key is closed at a time t=t₀. Choose the correct options(given \(e^{-1}=0.36\))

The liquid is raising at a rate of 250\(cm^3s^{-1}\) in the container. Value of the capacitance of the container after 10 sec.? (\(\varepsilon_0=9 \times10^{12}C^2N^{-1}m^{-2}\))

A capacitor C₁ of capacitance 5 μF is charged to a potential of 30 V using a battery. The battery is then removed and the charged capacitor is connected to an uncharged capacitor C₂ of capacitance 10 μF as shown in figure. When the switch is closed charge flows between the capacitors. At equilibrium, the charge on the capacitor C₂ is ____ μC.

The equivalent capacitance of the combination shown in the figure is :

The difference between equivalent capacitances of two identical capacitors connected in parallel to that in series is $6 \,\mu F$ . The value of capacitance of each capacitor is

Find amount of charge flown from Y to X when switch S is closed.

Determine the charge on the capacitor in the following circuit :

Two identical parallel plate capacitors, of capacitance $C$ each, have plates of area $A$, separated by a distance $d$. The space between the plates of the two capacitors, is filled with three dielectrics, of equal thickness and dielectric constants $K_1, K_2$ and $K_3$. The first capacitor is filled as shown in fig. $I$, and the second one is filled as shown in fig. $II$. If these two modified capacitors are charged by the same potential $V$, the ratio of the energy stored in the two, would be ($E_1$ refers to capacitor (I) and $E_2$ to capacitor (II) :

The equivalent capacitance between A and B is,

Two capacitors of $3 \, \mu F$ and $6 \, \mu F$ are connected in series and a potential difference of 900 V is applied across the combination. They are then disconnected and reconnected in parallel. The potential difference across the combination is

An infinite number of capacitors $2.0 \, \mu F, 4.0 \, \mu F , 8.0 \, \mu F, 16.0 \, \mu F$, ............ are connected in series. The equivalent capacitance of the system is

A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of resulting system

Two capacitors $C_{1}$ and $C_{2}$ in a circuit are joined as shown in figure. The potentials of points A and B are $V_{1}$ and $V_{2}$ respectively. Then the potential of point D will be

The minimum value of effective capacitance that can be obtained by combining $3$ capacitors of capacitances $1\, pF,\, 2\, pF$ and $4\, pF$ is

The minimum and maximum capacitances, which may be obtained by the combination of three capacitors each of capacitance 6$\mu$ F are

Two identical parallel plate air capacitors are connected in series to a battery of e.m.f. $V$. If one of the capacitor is completely filled with dielectric material of constant $K$, then potential difference of the other capacitor will become

Three capacitors $3\, \mu F , 6 \, \mu F$ and $6\, \mu F$ are connected in series to a source of $120 \, V$. The potential difference, in volt, across the $3 \, \mu F$ capacitor will be

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 ?

Two identical capacitors are first connected in series and then in parallel. The ratio of equivalent capacitance is

See the diagram. Area of each plate is $2.0\,m^2$ and $d = 2\times 10^{-3} C$ is given to $Q$.Then the potential of $Q$ becomes

Two spherical conductors $A$ and $B$ of radii $a$ and $b(b>a)$ are placed concentrically in air. The two arc connected by a copper wire as shown in figure. The equivalent capacitance of the system is

Two capacitors of capacities $1 \, \mu F$ and $C \, \mu F$ are connected in series and the combination is charged to a potential difference of $120 \,V$. If the charge on the combination is $80 \, \mu C$, the energy stored in the capacitor of capacity $C$ in $\mu J$ is