A spherical conductor of radius 10 cm has a charge of 3.2×10−7 C distributed uniformly. What is the magnitude of electric field at a point 5 cm from the surface of the sphere?
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?