39
Pritish Chakraborty
·2011-01-28 03:48:31
Can you write down your solution? Because your Grav PE is correct and I don't see what you may have done wrong..
1
rajuabcd pqrs
·2011-01-28 04:30:20
this is what i did

initial energy==
final enrgy=

=
C1 and C2 are two capacitors in series



1
rajuabcd pqrs
·2011-01-28 04:32:32
+ grav PE
my answer is cuming to be twice of the correct answer plzz tell me wats my mistake
hcv answer is different from irodovs and also different from the answer given by the above process!!!
hcv part 2---page=163--example=23
irodov=page=124;;3.144
1
rajuabcd pqrs
·2011-01-28 07:18:45
anyone who can help me out 4 dis problem
6
AKHIL
·2011-01-28 08:37:40
dont know abt irodov but the ans in HCV is correct dude...
1
samagra Kr
·2011-01-28 21:53:15
yes ,i have also got it twice the answer(but its incorrect)
,since its not given whether the capacitor is ISOLATED or CONNECTED to a battery(work done by the battery is taken into consideration in this case);;;
,you can write an expression for TOTAL ENERGY when Height of liquid is X,and since the TOTAL ENEGRY IS CONSTANT>>
differentiate wrt to x,
and you will get the answer,,
if not i will post the solution
first try yourself :)