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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 2 - Electrostatic Potential and Capacitance > The capacitance (C) for an isolated conducting sphere of radius (a) is given by 4πϵoa. If the sphere is enclosed with an earthed concentric sphere. The ratio of the radii of the spheres being n−1/n ​then the capacitance of such a sphere will be increased by a factor.

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

A metallic sheet is inserted between plates parallel to the plates of a parallel plate capacitor. The capacitance of the capacitor.