Q. The electric field due to an electric dipole at a distance $r$ from its centre in axial position is $E.$ If the dipole is rotated through an angle of $90^{o}$ about its perpendicular axis, the electric field at the same point will be
A) $E$
B) $\frac{E}{4}$
C) $\frac{E}{2}$
D) $2E$
Explanation
(c) When the dipole is rotated through at an angle of $90^{o}$ about it’s perpendicular axis then given point comes out to be on equator. So field will become $E/2$ at the given point
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.