Q1.a capacitor of capacity C is charged to a potential of V...another capacitor of capacitance 2C & potential 2V. now they are connected in parallel in such a way that +ve plateof 1st capacitor is connected with -ve plate of 2nd capacitor. write expression for initial , final & loss in energy...

 

Q2.if there are two capacitors A and B  connected in series such that there is a key in /w them..i hope dia. is clear...now qn. satrts..if q charge is given to capacitor A. then when that key is closed then what amount of charge will flow through it after a long time......??