Why does a spherical conductor retain its charge for a long time in comparison with the conductors of any other shape?

Why does a spherical conductor retain its charge for a longer time in comparison with conductors of any other shape?

What should be the shape of a conductor to retain its charge?

Where does the charge of a conductor reside?

An insulated spherical conductor of radius l m is charged with a positive charge of 8piC . What is the surface density of charge on the surface of the conductor in C. m^(-2) ?

A hollow spherical conductor of radius 3 cm is charged with a charge of 36 pi C. The surface density of charge on the inner surface of the hollow conductor is

A hollow spherical conductor of radius 3 cm is charged with a charge of 36 pi C. The surface density of charge on the outer surface of the hollow conductor is

If temperature of a good conductor increases,how does the relaxation time of electrons in the conductor change

The number of free electrons per unit volume in a metallic conductor is 10^22 cm^-3 .The area of cross section of the conductor is 1mm^2 and the strength of current through the conductor is 1A. Determine the drift velocity of the free electrons,(Given that the charge of an electron -1.6 times 10^-19 C )

Why does a dry cell becomes dead after a long time even if it has not been used?

The capacitance of a spherical conductor is 1 muF and the charge on it is -10C. What is its potential in air?