For an electric dipole potential & electric field

Options

A. can have same magnitude for a point at a distance less than 2 meter
B. can have same magnitude fo a point at distacnes greater than 2 meter
C. can never be equal
D. can never be predicted

Answer

2

Explanation

V=E
`(Kpcos theta )/(r^(2))=(Kp)/(r^(3))sqrt(1+3 cos^(2)theta)`
`r^(2) =sec^(2)theta +3 =4 + tan^(2)theta`
hence minimum value of `r^(2)=4`
r=2m