12. A circuit with four resistors and two batteries is shown in Figure 1. Note the orientation ofthe positive (high potential) and negative (low potential) battery terminals. Answer the questions about this circuit on the lab worksheet. R2 R1 3 2 4 R3 V2 V1 RA 5 Figure 1Step 12 Questions about the circuit shown in Figure 1 ofthe lab manual: a. Can you predict the direction that current will flow through this circuit? If yes, what will it be, and how can you tell? If no, why not? b. Assume the current is flowing clockwise through the circuit. In the space below, sketch a graph that qualitatively shows the changes in electric potential throughout the circuit: I On the horizontal axis, plot the numbered points in the circuit 1 through Sin order; repeat point 1 at the end after point 5. I The vertical axis will show qualitatively the value of the electric potential at each of the numbered points. Start with a potential of 0 V at point 1; then show how the potential increases or decreases from one point to the next. \fc. Use the values ofthe resistances in Table 1 above for resistors 1 through 4. Also, assume that battery 1 has a voltage of V1 = 10 V and battery 2 has a voltage of V2 = 5 V. What other things would you need to draw an accurate quantitative graph, with a numerical scale for the electric potential on the vertical axis? How can you find those things using Kirchhoff's rules? d. Apply Kirchhoff's rules (and Ohm's law) to calculate the things you listed in part c. e. In the space below, redraw the graph from part b, this time as an accurate quantitative graph that shows the numerical value of the potential at each of the numbered points. (Again assume the potential is 0 V at point 1.) f. Describe the similarities and differences between your qualitative graph in part b and your numerical graph in part e. How accurate was your prediction in part b? 3. Even if we had enough power supplies, we would not connect this circuit to test your calculations. Why is that