1. The problem statement, all variables and given/known data Hi, imagine an insulating uniformly charged sphere. Its electric field points from the center outwards radially. Now cut out another smaller sphere from inside, such that their centers do not coincide. What is the electric field inside the hollow like? 2. Relevant equations Principle of superposition 3. The attempt at a solution I figured that by principle of superposition I could subtract the vectors of the old E-field by the E-field due to the removed portion. Is this correct? And it doesn't help in visualizing the pattern too.