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Energy stored in a capacitor 
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#1
Mar611, 05:41 PM

P: 1,394

1. The problem statement, all variables and given/known data
Long time after closing K1,k2 and k3 the energy stored in each capacitor is? 3. The attempt at a solution My method is to find out an expression for the current through the capacitor (of net capacitance 2C) at any time t and use I = CdV/dt to find out V across it at t=inf. However this method appears to be very long. Is there any shortcut? 


#2
Mar611, 06:05 PM

P: 1,781

Yes. At T=inf the current through the capacitors is zero.



#3
Mar611, 06:28 PM

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#4
Mar711, 02:40 AM

P: 1,394

Energy stored in a capacitor
So you mean voltage drop across any capacitor is V ?



#5
Mar711, 07:51 PM

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As t → ∞ : The only current flowing is through R_{1} and R_{2}. What is the voltage drop across R_{2}? 


#6
Mar811, 03:22 AM

P: 1,394

Its V/3
Thank you!! 


#7
Mar811, 01:55 PM

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