9. (18 Points) The currents I1, 12, and 13 in the circuit shown in Figure-4 are unknown. (a) Write down three independent equations by applying Kirchhoff's junction and loop rules. Use the letters to identify your junction and your loops. Don't solve the equations here. Only equations are needed for this part. (b)Find the currents I1, 12, and 13. (c) Find the power dissipated in the 16-2 resistor. (d) What is the power output of the 24V battery? R4 R5 C a b 10 12 16-52 + V2 = 10 V + V1 = 24 V R2 = 60 R3 = 402 d