Assuming an expression for the potential of an isolated conductor, show that the capacitance of such a sphere will be increased by a factor n, if it is enclosed within an earthed concentric sphere, the ration of the spheres being `n/(n - 1)`.

The capacity of an isolated sphere is increased n times when it is enclosed by an earthed concentric sphere. The ratio of their radii is

The capacitance (C ) for an isolated conducting sphere of radius (a) is given by 4pi epsilon_(0)a . If the sphere is enclosed with an earthed concentric sphere. The ratio of the radii of the sphere being (n)/((n-1)) then the capacitance of such a sphere will be increased by a factor

In a close packed array of N spheres, the number of tetrahedral holes are

Show that the capacitance of a spherical capacitor is (4piepsi_(0)b^(2))/((b-a)) when the outer sphere is charged and the inner earthed.

When the pressure on a sphere is increased by 80 atmospheres then its volume decreases by 0.01% . Find the bulk modulus of elasticity of the material of sphere. (in N/m^2)

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

If a charge q is placed at the centre of imaginary sphere of radius r then the N.E.I. at a point on such a sphere is