For the circuit below the switch, S, has been in the closed position for a long long time and is opened at t = 0. Determine the voltage across inductor, L1, VI1, for all times greater than or equal to 0+, VL1 (t) for t ?0+.
V1
6.4V
R1
S opens at t=0
VL1
+ L1 -
5?
3H
IL1
R2
10?
R3
2?
?
VL1 (t) = +8$e^{-(\frac{t}{0.25})}$
VL1 (t) = +8$e^{+(\frac{t}{0.25})}$
VL1 (t) = -8$e^{+(\frac{t}{0.25})}$
VL1 (t) = -8$e^{-(\frac{t}{0.25})}$