QUESTION 1 a) The switch in the circuit of Fig. Q1(a) has been closed for a long time before it is open at t = 0. Analyse the circuit to find the following: i) the voltage across the capacitor, vec (t) for t 0. the voltage across the capacitor, ve (t) at t = 1.3 ms. the current that flowing through the capacitor, ic(t) for t > 0. ii) iii) 250 2 600 2 100 2 ic 1=0 4 µF 'c(t) 31250 2 2 kN 400 2 120V Fig. Q1(a)

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ISBN:9780133923605
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QUESTION 1
a) The switch in the circuit of Fig. Q1(a) has been closed for a long time before it is open
at t = 0. Analyse the circuit to find the following:
i)
the voltage across the capacitor, ve (t) for t20.
the voltage across the capacitor, ve (t) at t = 1.3 ms.
the current that flowing through the capacitor, ic(t) for t > 0.
ii)
iii)
250 2
600 2
100 2
ic
1=0
Ž1250 2 (*) 120V
3 2 kQ
400 2
4 µF Vc(t)
Fig. Q1(a)
Transcribed Image Text:QUESTION 1 a) The switch in the circuit of Fig. Q1(a) has been closed for a long time before it is open at t = 0. Analyse the circuit to find the following: i) the voltage across the capacitor, ve (t) for t20. the voltage across the capacitor, ve (t) at t = 1.3 ms. the current that flowing through the capacitor, ic(t) for t > 0. ii) iii) 250 2 600 2 100 2 ic 1=0 Ž1250 2 (*) 120V 3 2 kQ 400 2 4 µF Vc(t) Fig. Q1(a)
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