Note: I only need 1-3 done.

Now we will tackle a more complex two-loop circuit using Kirchhoff's rules. In the circuit shown in (Figure 1), a 12 VV power supply with unknown resistance rr (represented as a battery) is connected to a run-down rechargeable battery with unknown emf EE and internal resistance 1 ?? and to a bulb with resistance 3 ??. The current through the bulb is 2 AA, and the current in the run-down battery is 1 AA; the directions of both of these currents are shown in the figure. (a) Find the unknown current II in the 12 VV battery, the internal resistance rr of the power supply, and the emf EE of the run-down battery. (b) Find the electric power for each emf in the circuit.

(1) In this example, find II if the current through the bulb is 3 AA rather than 2 AA.Express your answer with the appropriate units.

(2) Find rr if the current through the bulb is 3 AA rather than 2 AA.Express your answer with the appropriate units.

(3)Find EE if the current through the bulb is 3 AA rather than 2 AA.Express your answer with the appropriate units.

Figure (1) 12 V E 2ATS 30 I A 10 F