QI: For the circuit shown, the switch has been closed for a long time, before being thrown open at f= 0. (a) calculate the current labeled ix at r 70 ms. 10n 20Ω 1=0 I mA 2 mF 150 30 1

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QI: For the circuit shown, the switch has been closed for a long time, before being
thrown open at t = 0. (a) calculate the current labeled ix at t= 70 ms.
10Ω
20Ω
1=0
I mA
2 mF
150
30 n
Q2: For the circuit shown beside, the switch has been closed for a long time, before
being thrown open att = 0. Find a mathematical expression for Vc for t>0.
20 kl
3 kl
5 uF
5 k
1 kl
12 V
10 kfl
Transcribed Image Text:QI: For the circuit shown, the switch has been closed for a long time, before being thrown open at t = 0. (a) calculate the current labeled ix at t= 70 ms. 10Ω 20Ω 1=0 I mA 2 mF 150 30 n Q2: For the circuit shown beside, the switch has been closed for a long time, before being thrown open att = 0. Find a mathematical expression for Vc for t>0. 20 kl 3 kl 5 uF 5 k 1 kl 12 V 10 kfl
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