What is the field outside due to uniformly charged thin spherical shell ?

q/4εor2 q/4πεor2 q/8εor2 q/8πεor2

q/4πεor2

The expression for the field outside due to uniformly charged thin spherical shell : E = q/4πεor2. The field of sphere is as if the whole charge is present at the center of the sphere.