A capacitor of capacity  is charged upto  volt and then connected to an uncharged capacitor of capacity . Then final potential difference across each will be        

Three capacitors each of  are to be connected in such a way that the effective capacitance is . This can be done by connecting them :

76. A combination of parallel plate capacitors is maintained at a certain potential difference. 

When a  thick slab is introduced between all the plates, in order to maintain the same potential difference, the distance between the plates is increased by .                                                    

Find the dielectric constant of the slab.

A capacitor of capacitance  is charged to a potential  and then isolated. A small capacitor  is then charged from , discharged and chaged again; the process being repeated  times. Due to this, the potential of the larger capacitor is decreased to . The value of  is

For the configuration of media of permittivities  and  between parallel plates each of area A, as shown in Fig. the equivalent capacitance is

The charge on capacitor of capacitance  in the figure given below is :                    

From a supply of identical capacitors rated , the minimum number of capacitors required to form a composite  is

Two capacitors of capacitances  and  are charged to a potential of  each. They are now connected to each other, with the positive plate of each joined to the negative plate of the other. The potential difference across each will be