A battery E (e.m.f 12v and internal resistance 0.8 ohms) and a resistor R1 (10 ohms) are connected in series across two parallel resistors (R2 = 12 ohms, R3 = 18 ohms).
i) Draw the circuit diagram, determine the battery terminal voltage.
ii) Calculate the powers P1 and P2 dissipated across R1 and R2 respectively