A solid sphere of uniform density and radius 4 units is located with its centre at the origin O of coordinates. Two sphere of equal radii 1 unit, with their centres at A(-2,0 ,0) and B(2,0,0) respectively, are taken out of the solid leaving behind spherical cavities as shown if fig Then:

A nonconducting sphere of radius R = 5 cm has its center at the origin O of the coordinate system as shown in (Fig. 3.112). It has two spherical cavities of radius r = 1 cm , whose centers are at 0,3 cm and 0,-3 cm , respectively, and solid material of the sphere has uniform positive charge density rho = 1 // pi mu Cm^-3 . Calculate the electric potential at point P (4 cm, 0) . .

A nonconducting sphere of radius R = 5 cm has its center at the origin O of the coordinate system as shown in (Fig. 3.112). It has two spherical cavities of radius r = 1 cm , whose centers are at 0,3 cm and 0,-3 cm , respectively, and solid material of the sphere has uniform positive charge density rho = 1 // pi mu Cm^-3 . Calculate the electric potential at point P (4 cm, 0) . .

A solid sphere having uniform charge density rho and radius R is shown in figure. A spherical cavity ofradius (R)/(2) is made in it. What is the potential at point O?