Problem 5. A total charge of 12mC passes through a cross-sectional area of a nichrome wrie is 3.1s. If the number of charges that pass through the cross-sectional area furing the given time interval doubles, what is the resulting current? In units of A. Note: What formula(s) should I use? Problem 7. How long does it take for 7.5 C of charge to pass through a cross-sectional area of a copper wire if I=19A? In units of s. Note: I don't know where to start? Problem 11. A typical color television draws 2.8 A of current when connected across a potential difference of 121V. What is the effective resistance of the television set? Answer in omega. Note: What formula(s) should I use?