Let's analyze the following circuit. There are three DC batteries: three resistors. two switches (51.. 53}. six labeled points (P1: etc}: and a ground connection. Both switches are suddenly closed. R P 7 Upper V , S] '0 Middle 11. If you tneasure sz Vpi . will it be positive, negative or zero? Explain your reasoning. 12. Write out Kirchho's loop rule. for Loop =1 using the indicated loop direction starting from P1. 13. Write out Kirchho's loop rule for Loop =2 using the indicated loop direction starting Dl P1. 14. Algebraieallj: combine your answers to Questions #9: #12 and =13 to determine all three currents. Hint: The algebra will be easiest if you substitute your answers from Questions #12-13 into your answer to Question #9