An electric dipole in a uniform electric field E experiences

Question

Accepted Answer

A. {'text': 'Zero net force but a torque of magnitude pE sin θ', 'label': 'A'}

1. In a uniform field, forces on +q and −q are equal and opposite.
2. Net force is therefore zero.
3. But the forces do not act along the same line, giving a torque.
4. Magnitude: τ = p × E × sin θ, where θ is the angle between p and E.
_Source: NCERT Class 12 Physics, Ch 1 "Electric Charges and Fields", §1.7_

Answer

{'text': 'A net force with a corresponding restoring torque', 'label': 'B'}

Answer

{'text': 'A finite non-zero force but zero net torque acting', 'label': 'C'}

Answer

{'text': 'Neither a net force nor a net torque in any orientation', 'label': 'D'}