Torque on a dipole of moment p placed in a uniform field E at angle θ …

Question

Torque on a dipole of moment p placed in a uniform field E at angle θ is:

Accepted Answer

A. p E sinθ

1. τ = p × E = p E sinθ in magnitude, with direction by right-hand rule.
2. Torque vanishes at θ = 0 (stable equilibrium) and θ = 180° (unstable).
3. Net force on a dipole in a UNIFORM field is zero; only torque acts.
_Source: syllabus Physics Ch 1 §1.9 Dipole in Uniform Field_

Answer

p E cosθ

Answer

p E

Answer

p / E

Torque on a dipole of moment p placed in a uniform field E at angle θ is:

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