There is a hemispherical shell having charge uniformly distributed on its surface

PHYSICS · Subjective · AP · Physics C: Electricity and Magnetism · Electric Charges Fields and Gauss's Law · Electric Charges Fields and Gauss's Law

Problem

There is a hemispherical shell having charge

Q

uniformly distributed on its surface. Radius of the shell is

R

. Find electric potential and field at the centre (of the sphere).