Electrostatic P...

Plates of area A are arranged as shown. The distance between each plate is d,the net capacitance is 

Find the charge on each capacitor in the given network. Each capacitor has a capacitance of $$6\mu F$$.

Charge  $$5 \mu\ C$$,$$-2 \mu\ C$$,and $$-9 \mu\ C$$ are placed at the comers A,B,C and D of a square ABCD of side $$2m$$. The electric potential at the center of the square is:

In a given circuit diagram charge on capacitor 6 $$\mu F$$ is 2 $$\mu C$$. The charge on capacitor of capacity 4 $$\mu F$$ is :

Four capacitors of each of capacity $$3 \mu F $$ are connected as shown in the adjoining figure. The ratio of equivalent capacitance between $$A$$ and $$B$$ and between $$A$$ and $$C$$ will be :

The equivalent capacitance between the points A and in the given diagram is:

Two parallel plate capacitors are connected in series. Each capacitor has a plate area A and a separation d between the plates. The dielectric constant of the medium between their plates are 2 and 4 . The separation between the plates of a single air capacitors of plate area A which effectively replaces the combination is:

A technician has only two capacitors. By using them singly, in series or in parallel, he is able to obtain the capacitances of $$3 \mu F$$, $$4 \mu F$$  ,$$12 \mu F$$ and $$16 \mu F$$. The capacitances of the two capacitrs are:

The equivalent capacitance between the points $$A$$ and $$B$$ in the given diagram is:

A non conducting semicircular disc (as shown in figure) has a uniform surface charge density $$\sigma $$. The electric potential at the centre of the disc:-