The thickness of air layer between two coating of a spherical capacitor is 2cm. The capacitor has same capacitor as the sphere of 1.2m diameter. Find the radii of its surfaces.

The thickness of air layer between two coating of a spherical capacitor is 2cm. The capacitor has same capacitance as the sphere of 1.2m diameter. Find the radii of its surfaces.

The outer sphere of a spherical air capacitor is earthed.For increasing its capacitance

The diameter of each plate of an air capacitor is 4cm . To make the capacity of this plate capacitor equal to that of a sphere of diameter 20 cm, the distance between the plates is x times10^(-3) m .Then x is,,.

The difference between the radill of the two spheres of a spherical capacitor is increased. Will the capacitance increase or decrease ?

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

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

A parallel plate air capacitor has the same capacity as that of a spherical conductor of diameter 1.2 m. If the plates of the parallel plate capacitor are separated by a distance of 0.2 m, calculate the area of the plates.