An insulated conical shaped metallic conductor is charged positively. The surface charge density on it is

Options

A. uniform throughout
B. minimum at the apex
C. maximum at the apex
D. maximum at its base

Answer

C

Explanation

As it is known that surface charge density is maximum when the radius is minimum. It is because surface charge density, `sigma=(q)/(4pi r^(2))`. So, in the case of conical conductor, it will be maximum at apex.