In the following figure, you can see a circuit with R1 = 2 Ω, R2 = 2 R1, R3 = 0.5 R2, R4 = 2 R3. E1 and E2 are identical batteries with EMF 5 V and internal resistance 0.25 Ω. (a) Find the current in every resistance using Kirchhoff's law. [6] (b) Find the potential difference, VAC, between A and C point. [2] (c) Suppose, you replace the second battery with a capacitor of capacitance of 10 F. After sufficient time, what would be the total current of the whole circuit? [2]