## Electric field due to a uniformly charged hollow sphere at a distance of r (where r is greater than the radius of the sphere) is __________

a) Proportional to r

b) Inversely proportional to r

c) Proportional to r^{2}

d) Inversely proportional to r^{2}

**Answer:** d**Explanation:** If the total charge of the sphere is q then the electric field at a distance of r is equal to q/4πεor2.Therefore the electric field is proportional is 1/r2 (if r > radius of the sphere). But if r < radius of the sphere the electric field will be zero i.e. electric field inside a hollow sphere is always zero.