A spherical capacitor has an inner sphere of radius 9 cm and an outer sphere of radius 10 cm. the outer sphere is earthed and the inner sphere is charged. What is the capacitance of the capacitor?

A spherical capacitor has an inner sphere of radius 10 cm and outer sphere of radius 12 cm . The outer sphere is earthed and the inner sphere is given a charge of 5 mu C . The capacitance of the capacitor is

A spherical capacitor has an inner sphere of radius 12 cm and an outer sphere of radius 13 cm. The outer sphere si earthed and the inner sphere is given a charge of 2.5 muC . The space between the concentric spheres is filled 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 ?

A sherical capacitor has an inner sphere of radius 12 cm and an outer spere of radius 13 cm . The outer sphere is earthed, and the inner sphere is given a charge of 2.5 muC . The space between the concentric spjheres is filled with a liquid of dielectric caonstant 32 . Determine the potential of the inner sphere.

A spherical capacitor has an outer sphere of radius 0.15m and the inner sphere of diameter 0.2m The outer sphere is earthed and the inner shere is given charge of 6 muC . The space between the concentric spheres is filled with a material of dielectric constant 6. Calculate capacitacne and potential of inner sphere.

A spherical capacitor has the inner sphere of radius 2 cm and the outerone of 4 cm . If the inner sphere is earthed and the outer one is charged with a charge of 2muC and isolated. Calculate ltbr. (a) the potential to which the outer sphere is raised. (b) the charge retained on the outer surface of the outer sphere.

Capcity of a spherical capacitor is C_(1) when in sphere is charged and outer sphere is earthed and when inner sphere is earthed and outer sphere charged. Then (C_(1))/(C_(2)) is (a = radius of inner sphere b = radius of outer sphere)

A spherical ball of lead of radius 14 cm is melted and recast into spheres of radius 2 cm. The number of the small spheres is

A sphere of radius 0.03m is suspended within a hollow sphere of radius 0.05m . If the inner sphere is charged to a potential of 1500 volt and outer sphere is earthed. Find the capacitance and the charge of the inner sphere.

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