What explains why the electric field outside a neutral object can be non-zero when placed in an external field?
**Interaction of dipole with uniform field** produces pure couple without net force, equal opposite forces forming torque. Potential energy minimum -pE at alignment, maximum +pE at anti-alignment, governing orientation dynamics. Induced charge separation occurs in a neutral object under an external field, creating dipoles or surface charges. These induced charges produce their own field, which adds to the external field, resulting in a non-zero total field outside. Substituting values gives Induced charge separation, which matches expected magnitude for this electrostatic configuration, confir
Ref: NCERT > Physics Book > Electric Charges and Fields > Electric Dipole - Moment, Field and Torque