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Express all numeric answers in SI units unless otherwise instructed. Express all numeric answers in SI units unless otherwise instructed. 1. Its.) 11. 12. 13. 14. 15. 10. 1?. 10. 19. 20. In the everyday case of current owing through metal wires, which charged particles actually flow? In what direction do they ow? 1iii-That mechanism{s} allow electrical signals to travel so quic lily\"? A total of 450' C of charge passes through a ashlight in 0.25 hours. What is the average current? A large lightning bolt had a 2100031 current and moved 45.0 C of charge. What was its duration? Explain the statement: Slim 's Law is on empirical low. {a} What drives current? (b) What impedes current? {c} How does Ohm's Law relate these quantities? Why isn't lEthm's Law universally valid? What is the resistance of an automobile headlight through which 3.50 A ows when 12.0 's' is applied to it? If a battery supplies energy to a circuit, what does the resistor do with that energy? . Calculate the effective resistance of a pocket calculator that has a 5.2 '1" battery and through which 0.20 mill. ows. When are resistors in sorter? Explain. When are resistors in parallel? Explain. Three 1500 1'1 resistors are wired in series. What is the total resistance of the combination? Three 1500 1'1 resistors are wired in parallel. What is the total resistance of the combination? Three 1500 11 resistors are wired in series with a 15 '1' battery. What is the current through each of the resistors? Three 1500 11 resistors are wired in parallel with a 15 1.? battery. What is the current through each of the resistors? Three 1500 11 resistors are wired in parallel with a 15 1:" battery. What is the current through the battery? Can any arbitrary combination of resistors be broken down into series and parallel combinations? Three resistors {1 10 1'1, 2500 1'1, and 5000 1'1) are wired together in series with a 11 '1' battery. What is the current through each of the resistors? Three resistors {110 1'1= 2500 1'1= and 5000 1'1) are wired together in parallel with a 12 '0 hatte ry. 1ililhat is the- current through each of the re sisters\