Question

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

Answer 1

Answer: (B)

$E_{a} = 2E_{e}$

Answer 2

We have $E_{a} = \frac{2kp}{r^{3}}$ and $E_{e} = \frac{kp}{r^{3}};$ ∴$E_{a} = 2E_{e}$