If the circumference of a sphere is 2 m, then capacitance of sphere in water would be

Find the capacitance of a sphere of radius 1 m.

The diameter of a sphere is 14 m. The volume of this sphere is :

If the radius of a conducting sphere is 1m, its capacitance in farad will be

There is a solid sphere of mass m. Moment of inertia about the axis passing through the centre of sphere is I. If the material of the sphere is recast to a disc of same radius then what would be its moment of inertia?

The surface area of a sphere is 616 cm^(2) . The volume of the sphere would be :

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

The error in the measurement of radius of a sphere of radius of a sphere is 2%. What would bet the volume of sphere?

A sphere has a concentric spherical cavity. The specific gravity of the material of the sphere is 8. the sphere is place on a surface of water. If in the equilibrium position the sphere just sinks in water, the ratio of theradius of cavity to the outer radius of the sphere is

A spherical capacitor has an inner sphere of radius 12 cm and an outer sphere of radius 13 cm. The outer sphere is earthed and the inner sphere is given a charge of 2.5muC . The space between the concentric spheres is fillled with a liquid of dielectric constant 32. (a) Determine the capacitance of the capacitor. (b) What is the potential of the inner sphere ? (c) Compare the capacitance of this capacitor with that of an isolated sphere of radius 12 cm. Explain why the latter is much smaller.