$A$ capacitor is used to store $24 \, \text{watt-hour}$ of energy at $1200 \, \text{V}$. What should be the capacitance of the capacitor?

Two capacitors $C_1$ and $C_2$ are connected in parallel to a battery. The charge-time graph is shown below for the two capacitors. The energy stored in them is $U_1$ and $U_2$,respectively. Which of the given statements is true?

If the distance between the plates of a capacitor with capacitance $C$ and charge $Q$ is doubled,the work done is:

Two capacitors,one of capacity $C$ and the other of capacity $\frac{C}{2}$,are connected to a $V \text{ volt}$ battery,as shown. The work done in charging fully both the capacitors is

The energy stored in a capacitor of capacity $C$ which has been raised to a potential $V$ is given by

The $V-Q$ graph is shown below. What does the area of $\triangle OAB$ represent in this graph?