This question has statement-I and statement-II. Of the four choices given after the statements, choose the one that best describes the two statements. An insulating solid sphere of radius R has a uniformly positive charge density ρ. As a result of this uniform charge distribution there is a finite value of electric potential at the center of the sphere, at the surface of the sphere and also at a point out side the sphere. The electric potential at infinite is zero.

Statement-I: When a charge ‘q’ is taken from the center to the surface of the sphere its potential energy changes by .

Statement-II: The electric field at a distance r (r < R) from the center of the sphere is