(b) The switch in the DC circuit of Figure 2(b) has been in position a for a long time. At time t = 0, the switch is moved to position b. Analyse and answer the below questions: (1) What is the expression for vo(t) when time t2 0? (i) What is the expression for i(t) when time t2 0*? (iii) How long after the switch is in position b does the capacitor voltage equal zero?

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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(b) The switch in the DC circuit of Figure 2(b) has been in position a for a long time.
At time t = 0, the switch is moved to position b. Analyse and answer the below
questions:
(1) What is the expression for vc(t) when time t2 0?
(ii) What is the expression for i(t) when time t2 0*?
(ii) How long after the switch is in position b does the capacitor voltage equal
zero?
(iv) Sketch graph for vo(t) and i(t) versus t.
Transcribed Image Text:(b) The switch in the DC circuit of Figure 2(b) has been in position a for a long time. At time t = 0, the switch is moved to position b. Analyse and answer the below questions: (1) What is the expression for vc(t) when time t2 0? (ii) What is the expression for i(t) when time t2 0*? (ii) How long after the switch is in position b does the capacitor voltage equal zero? (iv) Sketch graph for vo(t) and i(t) versus t.
400 kΩ
b
20 Ω
a
+
t = 0
90 V
60 Ω
40 V
Vc
0.5 μF
Transcribed Image Text:400 kΩ b 20 Ω a + t = 0 90 V 60 Ω 40 V Vc 0.5 μF
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