Using Coulomb's law, find the electric field at a distance h from the center of a spherical shell of radius R, which has a homogeneous surface charge distribution o. Analyze the cases when h < R (electric field inside the spherical shell) and h > R (electric field outside the spherical shell). (Hint, use the cosine theorem c = a² + b² – 2ab cos(0))

Using Coulomb's law, find the electric field at a distance h from the center of a spherical shell of radius R, which has a homogeneous surface charge distribution o. Analyze the cases when h < R (electric field inside the spherical shell) and h > R (electric field outside the spherical shell). (Hint, use the cosine theorem c = a² + b² – 2ab cos(0))