2. For the following RL transient circuit:
L
iL
660μH
+
R1
+
R2
+
V1
110Ī©
Is
3A
R3
V2
220Ī©
133300
-
a) (6 pts) Model the circuit at t = 0 (when the switch is closed)
and solve for: iā(0ĀÆ), vā(0ĀÆ), vā(0ĀÆ), and v3(0ĀÆ).
b) (6 pts) Model the circuit at t = 0+ (when the switch is open)
and solve for: iā(0+), vā(0+), vā(0+), and v3(0+).
c) (6 pts) Model the circuit for t ā„ 5t and solve for:
ίμ (5Ļ), νā(5Ļ), vā(5Ļ), and v3 (5Ļ).
d) (6 pts) Solve for the time constant, Ļ.