Q. If $E_{a}$ be the electric field strength of a short dipole at a point on its axial line and $E_{e}$ that on the equatorial line at the same distance, then
A) $E_{e} = 2E_{a}$
B) $E_{a} = 2E_{e}$
C) $E_{a} = E_{e}$
D) None of the above
Explanation
(b) We have $E_{a} = \frac{2kp}{r^{3}}$ and $E_{e} = \frac{kp}{r^{3}};\ \ \therefore E_{a} = 2E_{e}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.