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![[Post New]](/templates/default/images/icon_minipost_new.gif) 9 Apr 2008 19:58:09 IST
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everybody help me out with this how do you calculate the time constant for charging and discharging of capacitor in a given circuit is the time constant same for bot charging and discharging or different explain with an example and diagram !!!!JEE fast approaching rates assured!!!
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9 Apr 2008 20:01:17 IST
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well to find time const..its given by the formula ReqC for a capacitor circuit....now to find Req across the capacitor short the batt and cal the Req...i.e place a blanc wire in place of batt and cal....and C is the capacitance....hope u got it...
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9 Apr 2008 20:02:35 IST
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yeah you are rite but is it the same while charging and discharging is my question??? ifnot why!!!!
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9 Apr 2008 20:04:51 IST
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Yup, its the same
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______________________________________________
Siddhant Shah
The trouble with doing something right the first time is that nobody appreciates how difficult it is.
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9 Apr 2008 20:05:56 IST
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perfectly same...only the charge varies in case of chargin and dischargin.. hope u know tht formula....
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9 Apr 2008 20:07:19 IST
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yeah i know that but what happens in the case of an inductor instead of capacitor???
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9 Apr 2008 20:08:18 IST
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well the formula of tow time const changes...L/R I think...
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9 Apr 2008 20:09:17 IST
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I think then L(dI/dt) acts as effective resistance
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______________________________________________
Siddhant Shah
The trouble with doing something right the first time is that nobody appreciates how difficult it is.
You can't control the wind, but you can adjust your sails.
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9 Apr 2008 20:11:09 IST
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yeah you are rite but check out OBjective physics if you have one of arihant he has given that time constants of charging and discharging are not the same!!!!
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