Question

What is the angle between the electric dipole moment and the electric field strength due to it on the equatorial line?

• A. $0^{\circ}$
• B. $90^{\circ}$
• C. $180^{\circ}$
• D. None of these

Answer 1

Answer: (C)

$180^{\circ}$

Answer 2

The electric field strength due to an electric dipole at a point in its equatorial position, is parallel to axis of dipole. Also the two are antiparallel, i.e., in opposite directions to each other. Hence, the angle between electric field strength and electric dipole moment is $180^{\circ}$.