8.48 The switch in the circuit in Fig. P8.48 has been in PSPICE position a for a long time. At t = 0, the switch moves MULTISIM instantaneously to position b. %3D a) What is the initial value of v,? b) What is the initial value of dvaſdt? c) What is the numerical expression for va(t) for t > 0? Figure P8.48 100 N a 20 N 12 Ω t = 0 300 V + 2 mH Va 5 μF

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8.48 The switch in the circuit in Fig. P8.48 has been in
PSPICE position a for a long time. At t = 0, the switch moves
instantaneously to position b.
MULTISIM
a) What is the initial value of vq?
b) What is the initial value of dva/dt?
c) What is the numerical expression for va(t)
for t > 0?
Figure P8.48
100 N
a
Ь 200
12 Ω
+
t = 0
300 V
+
Va
2 mH
5 µF
Transcribed Image Text:8.48 The switch in the circuit in Fig. P8.48 has been in PSPICE position a for a long time. At t = 0, the switch moves instantaneously to position b. MULTISIM a) What is the initial value of vq? b) What is the initial value of dva/dt? c) What is the numerical expression for va(t) for t > 0? Figure P8.48 100 N a Ь 200 12 Ω + t = 0 300 V + Va 2 mH 5 µF
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