Potential of a conduction changes on charging:- How is charge related to the potential?

Potential of a conduction changes on charging:- What Is the ratio called?

Two spheres of Copper of same radii, one hollow and the other solid are charged to the. same potential. Which sphere has more charge?

Variation of field with distance of a charged conducting shell is given below. R is the radius of the sphere. Br Draw the potential-distance graph in the above case.

Potential energy of a system of charges is directly proportional to the product of charges and inversely to the distance between them.Two point charges 3 x 10^(-8) C and - 2 x 10^(-8) C are separated by a distance of 15cm. At what point on the line joining the charges the potential is zero?