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18 Mar 2007 01:16:07 IST
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simple kirchoff's law
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though i used to solve such type of problems with nodal analysis only which covered every circuit problem, i wanna know the same with kirchoff's law as well
here's the figure and i do not know how to apply the sign convention here, as on one hand the charge is goin from +ve to -ve , but if we think regarding the capacitor plate, it's exactly the reverse !
i mean just explain it to ne using the sign convention of kirchoff's law .
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vishak p
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Joined: 9 Feb 2007
Posts: 1347
18 Mar 2007 01:18:51 IST
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just a moment , attaching the figure !
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18 Mar 2007 01:37:04 IST
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secondly here the charge just doesn't flow at all. see it would be wrong to show the arrow depicting the flow of charge as it doesn't flow in capacitor. rather in the diagram u have shown they are connected therefore they will share their charge and try to reach at same potential.
and thus here charge will be shared from 4cv capacitor to
cv capacitor
and thus here charge will be shared from 4cv capacitor to
cv capacitor
18 Mar 2007 02:11:43 IST
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ok i have solved.
see the potential of the 2c capacitor when it has initial charge of 4cv is 2v. and Ily the potential of the c capacitor is v.
when they are connected in parallel they tend to come at same potential and they share charge. charge flows in the outer circuit from 2c to c from left of the 2c capacitor & amount of charge that flows is q=2cv from 2c to c
see the potential of the 2c capacitor when it has initial charge of 4cv is 2v. and Ily the potential of the c capacitor is v.
when they are connected in parallel they tend to come at same potential and they share charge. charge flows in the outer circuit from 2c to c from left of the 2c capacitor & amount of charge that flows is q=2cv from 2c to c
18 Mar 2007 11:23:07 IST
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ok let me tell till which point i have reached
let us assume a charge +q is given from the capacitor having charge 4CV. now, this charge shall get absorbed into the other capacitor and cause necessary changes in the charge distribution.
now, i am not getting to do just the sign conventions !!!!!!!
let us assume a charge +q is given from the capacitor having charge 4CV. now, this charge shall get absorbed into the other capacitor and cause necessary changes in the charge distribution.
now, i am not getting to do just the sign conventions !!!!!!!
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