A sphere of radius R has a volume density of charge p=kr where r distance from the centre of the sphere and k is constant the magnitude of the electric field which exist at the surface of the sphere is given by (epsilon eo=permittivity of free spacea)4πkR'4/3eob)kR/3eoc) 4πkR/eod) kR'2/4eo
A sphere of radius R has a volume density of charge p=kr where r distance from the centre of the sphere and k is constant the magnitude of the electric field which exist at the surface of the sphere is given by (epsilon eo=permittivity of free space
a)4πkR'4/3eo
b)kR/3eo
c) 4πkR/eo
d) kR'2/4eo