A Particle with Charge Q Is to Be Brought from Far

Multiple Choice

A particle with charge q is to be brought from far away to a point near an electric dipole.No work is done if the final position of the particle is on:

A) the line through the charges of the dipole
B) a line that is perpendicular to the dipole moment
C) a line that makes an angle of 45 ° with the dipole moment
D) a line that makes an angle of 30 ° with the dipole moment
E) none of the above