This question has statement- and statement- Of the four choices given after the statements, choose the one that best describe the two statements.
An insulating solid sphere of radius has a uniformly positive charge density . 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- When a charge is take from the centre of the surface of the sphere its potential energy changes by
Statement- The electric field at a distance from the center of the sphere is