The image you have provided seems to be a circuit diagram involving capacitors in a network, and you're interested in finding the voltage $E_{AB}$ across points A and B.

To clarify the structure:

1. The circuit involves capacitors $C_1$, $C_2$, $C_3$, $C_4$, and an unknown element labeled $x$.
2. There are two terminals, A and B, and the capacitors are arranged in series and parallel combinations.
3. Capacitors $C_1$, $C_3$, and $C_4$ are interconnected, while $C_2$ and $C_5$ seem to be in series on the left-hand side.
4. The element $x$ could represent a capacitor or a resistor depending on the context.

Assumptions

• The circuit diagram is of a capacitor network, and we need to find the voltage between A and B.

To proceed:

• Could you confirm whether $x$ represents another capacitor or if it is something else?
• Do you want to calculate the equivalent capacitance of the network first and then use it to find $E_{AB}$?

With these details, I can provide a more accurate solution. Let me know if you need any clarifications.