neways I've cleared most of my doubts and here are my own answers to these questions...
1.work done is the dot product of force with displacement of the point of application of the force
2.the battery wud be shorted...
3.absolutely yes...
4.hmmm...well the 2 terminals receive equal...
these are NOT homework questions...their my own personal doubts... i don't see y they shud be in the homework thread nor do i understand y i received an infraction...obviously since I've come up with these questions...its obvious that I am not able to answer them...this website doesn't seem to...
also i don't know what u mean by confined...there is a liquid surface that's all...it doesn't matter whether its the surface of a sea or water in a cup...i don't understand y it shud matter...the question seems to be clear enough...
no the capacitor is charged and the key remains closed...let the height of the water be h1...then the key is opened(the capacitor is no longer connected in the circuit)...let the height now be h2... the ratio h2/h1 is asked... i guess this is quitw clear...my doubt is y wud the heights change at...
1.is work done the dot product of force with displacement of the center of mass of the body or the point of application of the force??
2.consider a battery whose terminals are connected by a pure conducting wire then since there can be no potential difference between any 2 points on...
Homework Statement
A parallel plate capacitor is dipped in a liquid of relative permittivity k horizontally, so that the upper plate remains outside. A source of emf V volt is used to charge the capacitor through a key K. The key K is first closed and then opened. The ratio of respective...