To what potential, must we charge an insulated sphere of radius 14 cm so that its surface charge density of `1 muC m^(-2)` ?

To what potential we must charge an insulate sphere of radius 14 cm, so that the surface charge density is equal to 2 muC m^(-2) ?

To what potential must a insulated sphere of radius 10 cm be charged so that the surface density of charge is equal of 1 muC//m^ 2 .

What charge would be required to electrify a sphere of radius 15 cm so as to get a surface charge density of (7)/(11) mu Cm^(-2) ?

What charge would be required to electrify a sphere of radius 25 cm, so as to get a surface charge density of 3/pi C/m^2 ?

What charge would be required to electrify a sphere of radius 25 cm, so as to get a surface charge density of (3)/(pi)Cm^(-2) ?

What charge would be required to electrify a sphere of radius 25 cm, so as to get a surface charge density of (3)/(pi)Cm^(-2) ?

How much charge is to be given to a sphere of radius 30 cm so that its surface density of charge will be 2/pi CGS unit?

What will be the surface density of charge of a sphere of radius 4 cm, if it is given 182 esu of charge?

A circular metal plate of radius 10 cm is given a charge of 20muC on its surface. The charge density of the plate is