Electrostatic P...

Four identical capacitors are connected such that ,three capacitors are in parallel the fourth is connected in series. The effective capacity is $$3.75$$ $$\mu F$$ then each capacitor is of value 

The equivalent capacitance of the circuit across the terminals  $$A$$  and  $$B$$  is equal to

Two identical parallel plate capacitors of same dimensions are connected to a D.C. source in series When one of the plates of one capacitor is brought closer to the other plate

The capacitor is  charged to equilibrium. A dielectric of constant $$K$$ is slowly inserted in the capacitor. Find work done by the external agent in inserting the dielectric.

Two capacitors of caacity $${ C }_{ 1 }$$ and $${ C }_{ 2}$$ are connected in series and potential difference V is applied across it. Then the potential difference across$${ C }_{ 1 }$$ will be 

Two capacitors are first connected in parallel and then in series. If the equivalent capacitances in the two cases are 16 F and 3 F, respectively, then capacitance of each capacitor is

Two points charges $$4 \mu C$$ and $$-2 \mu C$$ are separated by a distance of 1 m in air. At what point in between the charges and on the line joining the charges, is the electric potential zero? 

In a parallel plate capacitor, the region between the plates is filled by a delectric slab. The capacitor is connected to a cell and the slab is taken out.    

Two identical particles of mass m carry a charge Q each . Initially one is at rest on a smooth horizontal plane and the other is projected along the plane directly towards first particle a large distance with speed v. The closed distance of approach be 

An electric circuit requires a total capacitance of $$2 \mu F$$ across  potential of $$1000 V$$ . Large number $$1 \mu F$$ capacitances are available each of which would breakdown if the potential is more than $$350 V$$ How many capacitances  are required to make the circuit.