1. The problem statement, all variables and given/known data Given an infinitely long hollow dielectric cylinder of finite thickness and a single point charge find (a) the force on the point charge and (b) the potential energy of the configuration. 2. Relevant equations P = Epsilon * Chi * E 3. The attempt at a solution I am really at a lost as to what to do, and haven't made any progress. If someone could just point me in the right direction, that would be appreciated.