The electrostatic field of a point charge and an electrical dipole in the presence of a conducting sphere

摘要

We evaluate the electrostatic potential and the electrostatic field createdby a point charge and an arbitrarly oriented electrical dipole placed near agrounded perfectly conducting sphere. Induced surface charge distributions aswell as electrostatic energy, force and torque associated with thisconfiguartion are fully discussed. Possible variants of the problem are alsodiscussed.