Electric field at the equator of a dipole is E. If strength and distance is now doubled then the electric field will be :

Options

A. `E//2`
B. `E//8`
C. `E//4`
D. E.

Answer

C

Explanation

`E=(kP)/(r^(3))rArrEprop(P)/(r^(3))rArr(E_(1))/(E)=(2)/(8)rArrE_(1)=(E)/(4)`