Question

An electric dipole is placed inside uniform electric field when it is rotated from unstable equilibrium to stable equilibrium in uniform electric field what is the change in potential energy

Answer 1

Answer:

Change in potential energy of the dipole is given as

$\Delta U = - 2PE$

Explanation:

When dipole is oriented along unstable equilibrium then its electrostatic potential energy is maximum

So we will have

$U = -PE cos180$

$U_1 = PE$

now when it is rotated to stable equilibrium position then we have

$U_2 = - PE cos0$

$U_2 = - PE$

so change in potential energy of the charge

$\Delta U = U_2 - U_1$

$\Delta U = - PE - PE$

$\Delta U = - 2PE$

#Learn

Topic : Electric potential energy of dipole

https://brainly.in/question/6955517