A spherical conductor of radius 10 cm has a charge of 3.2 μC distributed uniformly over it. The magnitude of electric field at a point 5 cm from the centre of sphere is
A spherical conductor
of radius 12 cm has a charge of 1.6 × 10−7C
distributed uniformly on its surface. What is the electric field
(a) Inside the
outside the sphere
(c) At a point
18 cm from the centre of the sphere?