In figure 1, suppose that ε = 69.0 V, R = 250.0 ohms, and L = 0.170 H. Which switch S2 open, switch S1 is left closed until a constant current is established. Then S2 is closed and S1 is opened, taking the battery out of the circuit. Part A: What is the initial current, just after S2 is closed and S1 is opened, then determine the current in the resistor at t = 4.50x 10^-4 s. Part B: What is the potential difference between points b and c at t = 4.5 x 10^-4 s, then determine which point is at a higher potential (b or c)? Part C: How long does it take the current to decrease to half its initial value? Answer in seconds. Thank You for the help in advance!

In figure 1, suppose that ε = 69.0 V, R = 250.0 ohms, and L = 0.170 H. Which switch S2 open, switch S1 is left closed until a constant current is established. Then S2 is closed and S1 is opened, taking the battery out of the circuit. Part A: What is the initial current, just after S2 is closed and S1 is opened, then determine the current in the resistor at t = 4.50x 10^-4 s. Part B: What is the potential difference between points b and c at t = 4.5 x 10^-4 s, then determine which point is at a higher potential (b or c)? Part C: How long does it take the current to decrease to half its initial value? Answer in seconds. Thank You for the help in advance!

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