1C is inversely proportional to d^2 so decreasing the distance will increase the capacity ,increasing the capacity means to compress the charges and hence negative work is done .
ans. as far as i can think should be positive..........but answer given is negative,,,,,,,,,,,,,,wat's right???????
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1what are u saying peas??????
capacity will increase that means charge should increase and that means positive work is done.........isn't it?
9see plates attract each other
and the person is providing force in opposite direction to balance this force so that plates dont gain velocity
displacemnt is opp force so wd is -ve
see PE inc here bcos of battery
consider a situation where theres no battery then wont PE dec ?
so did u get it
9no eureka
voltage is constant as it iss connected to a battery
infact this Q is a very nice paradox Q
24yah realised it as soon i posted...but due to net prob couldnt delete it...
i misunderstood it to be disconnected from battery
1thanx..............seniors
ur comments are very precious for me at this stage to remove misconceptions i have like this one [1]
1k............now i m extending this problem[1]
new problem::::::::
how to determine work done by man in the above case?
9integratin Fdx
F can be represented in terms of separation btw plates
there is a formula for that or u can derive it