Question

The ratio of the electric field intensity
due to an electric dipole at an axial
point to that at an equatorial point at
same distance from the centre is
(i) 1:1(ii)2:1(iii)1:2(iv)1:4​

Answer 1

Answer:

The elecctric field at an axial point is given by

1/4πe(p)/r cube

and at an equitorial point is

1/4πe(2p)/r cube

Hence the ratio is 1 to 3

Answer 2

The ratio of the electric field intensity due to an electric dipole at an axial point to that at an equatorial point at same distance from the center is equal  to 2:1.

• The electric field intensity due to a dipole at an axial point of distance r from the center is equal to 2KP/r³ .
• The electric field due to a dipole at an equatorial point  of distance r from the center is equal to KP/r³.
• Here, k is equal to 1/4πε₀ and P is the dipole moment.
• Therefore, the ratio of the electric field intensities is equal to 2:1.