Question

An electric dipole of moment p is placed in the position of stable equilibrium in uniform electric field of intensity E. This is rotated through an angle θ from the initial position. The potential energy of the electric dipole in the final position is *

2 points

p E cos θ

p E Sin θ

p E ( 1 – cos θ)

– p E cos θ

​

Answer 1

Answer:

D

Explanation:

potential energy of dipole in electricit field

U=−pEcosθ

where

is the angel between electric and dipole