What is a capacitor ?

The capacity of a capacitor becomes 20muF when gap between the capacitor is filled completely by a dielectric slab of k = 4. What is the capacity of a capacitor with air in between the plates?

Energy stored in a capacitor and dissipated during charging a capacitor bear a ratio.

Capacity of a capacitor is 3muF . A slab of dielectric constant 4 is inserted between the plates and capacitor is charged to 200V and then isolated. What is the new potential difference if the dielectric slab is removed?

A metal foil of negligible thickness is introduced between the two plates of a capacitor at the centre. The capacitance of capacitor will be

Write two applications of capacitors in electrical circuits.

A parallel plate capacitor has an area of 4cm^2 and a plate separation of 3mm:- What is its capacitance if the space between the plates is filled completely with a dielectric having dielectric constant of 6.7.

What is the basic purpose of using a capacitor?

How oscillations are produced usingan inductor and a capacitor?

In a parallel plate capacitor with air between the plates, each plate has an area of 6 xx 10^-3 m^2 and the distance between the plates is 3mm.Calculate the capacitance of the capacitor.If this, capacitor is connected to a 100 V supply,what is the charge on each plate of the capacitor ?