일반물리학 2 — Electric Fields: Problem 35

35 An electric dipole consisting of charges of magnitude $1.50 \text{ nC}$ separated by $6.20 \text{ \mu m}$ is in an electric field of strength $300 \text{ N/C}$. What are (a) the magnitude of the electric dipole moment and (b) the difference between the potential energies for dipole orientations parallel and perpendicular to $\vec{E}$?