A parallel -plate capacitor with the plate area `100cm^2` and the separation between the plate 1.0cm is connected across a battery of emf 24 volts .Find the force of attraction between the plates.

A parallel -plate capacitor having plate area 25.0 cm^2 and a separation 2.00 mm between the plates .the capacitor is connected to a battery of 12.0 V.(a)find the charge on the capacitor .(b) the plate separation is decreased to 1.00 mm. Find the extra charge given by the battery to the positive plate.

A parallel-plate capacitor of plate area 40 cm^2 and separation between the plates 0.10 mm is connected to a battery of emf 2.0 V through a 16 Omega resistor. Find the electric field in the capacitor 10 ns after the connections are made.

A parallel - plate capacitor having plate area 20cm^2 and seperation between the plates 1.00 mm is connected to a battery of 12.0V . The plates are pulled apart to increase the separation to 2.0mm . (a ) calculate the charge flown through the circuit during the process . (b ) How much energy is absorbed by the battery during the process ? (c ) calculate the stored energy in the electric field before and after the process . (d ) Using the expression for the force between the plates , find the work done by the person polling the plates apart . (e ) Show and justify that no heat is produced during this transfer of charge as the separation is increased.

A parallel-plate capacitor with plate are 20cm^(2) and plate separation 1.0mm is connected to a battery .The resistance of the circuit is 10k(Omega) .Find the time constant of the circuit.

A parallel -plate capacitor having plate area 400 cm ^2 and separation between the plate 1.0mm is connected to a power supply of 100V. A dielectric slab of thickness1.0mm and dielectric constant 5.0 is inserted into the gap .(a)Find the increase in electrostatic energy .(b) If the power supply is now disconnected and the dielectric slab is taken out , find the further increase in energy. (c) Why does the energy increase in inserting the slab as well as in taking it out?

A parallel- plate capacitor with plate area A and separation between the plates d, is charged by a constant current i. Consider a plane surface of area A/2 parallel to the plates and drawn summetrically between the plates. Find the displacement current through this area.

A parallel-plate capacitor has plates of area 10cm^(2) separated by a distance of 1mm. It is filled with the dielectric mica and connected to a battery of emf 6 volts. Find the leakage current through the capacitor. Resistivity of mica =1xx10^(13)(Omega)m .

A parallel -plate capacitor having plate area 25cm^2 and separation 1 mm is connected to a battery of 6 V.. Calculate the charge flowing through the battery . How much work has been done by the battery during the process ?

Find the force of attraction between the plates of a parallel plate capacitor.