Question

the angle between electric field and dipole moment for which the dipole will be stable and unstable equilibrium​

Answer 1

Answer:

Work done to get the dipole in stable equilibrium is

W=pE (Cos x1–-Cos x2)

Here, x1 and x2 are the angels between dipole moment ‘p’ and electric field ‘E’ in the initial and final state of the dipole.

For unstable equilibrium, x1=180°

and for stable equilibrium, x2=0°

W=(2×10^(-8)×10^3)(Cos 180°—Cos 0°) J

=—4×10^(-5) J

Here,-ve sign represents that the work is done by the system itself.

Explanation: