일반물리학 2 — Electric Fields: Problem 40

40 An electric dipole consists of charges +2e and -2e separated by 0.85 nm. It is in an electric field of strength 3.4 x 10^6 N/C. Calculate the magnitude of the torque on the dipole when the dipole moment is (a) parallel to, (b) perpendicular to, and (c) antiparallel to the electric field.