For the circuit shown below, e = 24 V, L = 5.2 mH, and R = 3 ohms. After steady state is reached with S1 closed and S2 open, S2 is closed and immediately thereafter (at t = 0) S1 is opened.
Determine the current through L at t = 0.
Determine the current through L at t = 4.0 × 10^-4 s.
Determine the voltages across L and R at t = 4.0 × 10^-4 s.