Electrostatic P...

Four metallic plates are arranged as shown in the figure. If the distance between each plate then capacitance of the given system between points A and B is (Given d<<A)

Condenser A has a capacity of 15 $$\mu F$$ when it is filled with a medium of dielectric constant 15. Another condenser B has a capacity 1 $$\mu F$$ with air between the plates. Both are charged separately by a battery of 100V. After charging, both are connected in parallel without the battery and the dielectric material being removed. The common potential now is

Two parallel plate capacitors X and Y have the same area of plates and same separation between them. X has air between the plates while Y contains a dielectric medium of $$ \varepsilon _r=4$$.

In a parallel-plate capacitor with plate area $$A$$ and charge $$Q$$ the force on one plate because of the charge on the other is equal to.

Determine equivalent capacitance between A and B Each capacitance is of $$1$$ F. 

The resultant capacitance between points A and B in the adjoining figure

Find equivalent capacitance of the given circuit.

Find a capacitance

Consider an infinite matrix of capacitors as shown in the figure.
The effective capacitance between point $$A$$ and $$B$$ will be

In the given circuit, find the potential difference across the 6$$\mu \mathrm { F }$$ capacitor in steady state.