Find the potential difference between the points A and B between the points B and C of figure in steady state.

Capacitors in parallel:

If capacitors C₁, C₂, C₃ , … are in parallel, then the equivalent capacitance is given by:

Capacitors in series:

If capacitors C₁, C₂, C₃ , … are in sereis, then the equivalent capacitance is given by:

Note that the charge is same on each capacitor in series in steady-state.

The circuit can be redrawn as follows:

We can see that C₁ and C₂ are in parallel,

Also, we can see that C₃ and C₂₄ are in parallel,

The circuit can be redrawn as follows:

Now, the two capacitors and are in series.

Note that there is no current in equilibrium. Hence,

As and are in series,

Now,

Also,